Garage
Shop
Account Icon
Account
Box Icon
Track
order
Telephone Icon
Call
Help Icon
Help
Door with Arrow Icon
Sign In

1978 BMW 320i

Change vehicle | Remove vehicle

Universal gear includes car amplifiers, subs, and other products that do not install in a specific location or require fitment to integrate with a vehicle.

Overview Upgrade your Stereo Upgrade your Speakers Add a Subwoofer Add an Amplifier Digital Sound Processors Audio Installation & Accessories Add a Backup Camera Dads & Grads Sale

Universal-Fit Audio for 1978 BMW 320i

When thinking of universal gear, we consider products like a car amp that gives more power to your speakers or subs, cell phone chargers, equalizers and sound processors, rear-seat entertainment and video monitors, as well as dash cameras.

Better sound with your factory radio

Better sound with a factory radio

Love your factory look or can't replace the stereo? We got you covered.

Filters
Amplifiers with a wiring kit ✕
Clear Filters
Reset Done
Product Type
Amplifiers with a wiring kit,
You Recently Chose:
Fuses (123)
Subwoofers with a box (780)
Subwoofers (1,131)
Amplifiers (923)
Amplifiers with a wiring kit (437)
RCA cables and accessories (261)
Subwoofer enclosures (210)
Subwoofers with an amplifier and box (191)
Lighting accessories (176)
Subwoofer grilles (171)
Tweeters (Pro and special-fit) (150)
Amplifier wiring kits (138)
Speaker clamps and brackets (138)
Batteries (129)
Power and ground wire (129)
Backup cameras (119)
Speaker grilles (118)
Sound damping (105)
Subwoofers with an amplifier (101)
Alarm remote transmitters (96)
Handlebar and bar-mount speakers (96)
Line-out converters (87)
Fuse holders (81)
Speaker wire (73)
Replacement antennas (63)
Ring terminals (62)
Distribution blocks (58)
Light bars (58)
Connectors (56)
Speaker enclosures (52)
Bluetooth adapters and transmitters (50)
Speaker spacers and rings (50)
Bass remotes (49)
Cables and interconnects (49)
Dash cameras (39)
Sound processors (38)
Trim rings and universal mounts (38)
Alarms (34)
Stereo remote controls (33)
Recone kits (31)
Rocker and Button switches (31)
Circuit breakers (30)
Primary/Remote wire (29)
Battery isolators and relays (26)
Battery terminals (26)
Exterior lighting (26)
Installation accessories (25)
Audio test equipment (24)
Trigger output and bypass modules (24)
Alarm accessories (23)
Antenna extension cables (23)
Split loom and heat shrink (22)
Diodes and resistors (20)
Capacitors (19)
Speaker baffles (19)
Knockout panels (18)
Equalizers (16)
Noise filters (15)
Terminal cups (14)
Battery terminal posts (13)
Rearview monitor and mirrors (13)
Adapters (12)
Radar and laser detectors (11)
Video adapters and switchers (11)
Speaker diaphragms (10)
Headlight bulbs (9)
Bass booster enhancers and processors (8)
Battery chargers (8)
Power inverters (8)
2-way and CB radios (7)
Amplifier mounting hardware (7)
Panel and clip removal tools (7)
Tweeters (7)
Voltmeters (7)
Blindspot cameras and sensors (6)
Carpet (6)
Gauge adapters (6)
Grommets and firewall bushings (6)
Headlights (6)
Passive crossovers (6)
Sensors (6)
Box ports (5)
Knockout panel mount hardware (5)
Line drivers (5)
Power supplies (5)
Steering wheel adapters (5)
Active Crossovers (4)
Bass Blockers (4)
License plates and frames (4)
Parking sensors (4)
Amplifier cooling fans (3)
Big 3 upgrade kits (3)
Door panel clips (3)
Subwoofer (3)
Door actuators and poppers (2)
In-motion video/navigation bypass (2)
Radar detector mounts (2)
Rearview mirror mounts (2)
Video amplifiers (2)
Alarms with remote start (1)
Backup batteries (1)
Cable management (1)
Connector sets (1)
FM modulators and transmitters (1)
Multi-camera and DVR systems (1)
Overhead monitors (1)
Remote mount media players (1)
Price Range
Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.
Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.
Total Peak Power Output
The total peak power output is measured as the wattage per channel multiplied by the number of channels, and is calculated at the lowest level of operating impedance.

It is measured during a brief musical burst, such as a sudden drum accent. Some manufacturers display peak power ratings on the face of their products to increase the appeal.

The RMS power rating is more accurate, and we recommend using it for product comparison.
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
Remote bass/level controller
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
Preamp Outputs
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Speaker Level Inputs
Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
Maximum Input Gauge Size
This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
Deals
Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!
Availability
filter-icon Filters & Sort

DS18 ION1600.4D with NVX 4 Gauge Amp Kit

4800W Peak (1600W RMS) Class D ION Series 4 Channel Car Amplifier

ION16004D_XKIT44 big
Go to item page Right Arrow Icon of Right Arrow

DS18 ION1600.4D with NVX 4 Gauge Amp Kit

4800W Peak (1600W RMS) Class D ION Series 4 Channel Car Amplifier

• 240 watts x 4 channel @ 4 ohm
• 400 watts x 4 channel @ 2 ohm
• Bridged: 800 watts x 2 channel @ 4 ohm
• Total RMS Power: 1600 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

81
List price $575.94
-12% $505.36

In stock

Add to Cart

• 240 watts x 4 channel @ 4 ohm
• 400 watts x 4 channel @ 2 ohm
• Bridged: 800 watts x 2 channel @ 4 ohm
• Total RMS Power: 1600 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

Lowest price in 30 days

Rockford Fosgate Punch P600X4 with Amplifier Wiring Kit

600W Punch Series 4-Channel Stereo Class AB Car Power Amplifier

P600X4, XKIT44 big
Go to item page Right Arrow Icon of Right Arrow

Rockford Fosgate Punch P600X4 with Amplifier Wiring Kit

600W Punch Series 4-Channel Stereo Class AB Car Power Amplifier

• 75W x 4-Chan. @ 4 ohm
• 150W x 4-Chan. @ 2 ohm
• Built In NOMAD "Real Time" Analog Computer
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• MESHA3 Reduces MOSFET Temperatures for Improved Durability

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

91
List price $665.98
-25% $498.60

In stock

Add to Cart

• 75W x 4-Chan. @ 4 ohm
• 150W x 4-Chan. @ 2 ohm
• Built In NOMAD "Real Time" Analog Computer
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• MESHA3 Reduces MOSFET Temperatures for Improved Durability

Rockford Fosgate Power T750X1bd + NVX XKIT42

750W Power Series Ultra Compact Class-BD Monoblock Amplifier + NVX 4 Gauge Amp Wiring Kit

T750X1bd, XKIT42 big
Go to item page Right Arrow Icon of Right Arrow

Rockford Fosgate Power T750X1bd + NVX XKIT42

750W Power Series Ultra Compact Class-BD Monoblock Amplifier + NVX 4 Gauge Amp Wiring Kit

• 500 Watts RMS x 1 @ 4 ohm
• 750 Watts RMS x 1 @ 2 ohm
• 750 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 1500 Watts
• CEA-2006 Compliant
• C.L.E.A.N. input/output clip detection and indicator LEDs
• Dual extruded heat sinks
• C.L.E.A.N. input/output clip detection and indicator LEDs
• Real time thermal sensing with Rollback technology
• Dimensions: 4.3"W x 8.3"L x 1.6"H

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

130
List price $693.98
-17% $577.49

In stock

Add to Cart

• 500 Watts RMS x 1 @ 4 ohm
• 750 Watts RMS x 1 @ 2 ohm
• 750 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 1500 Watts
• CEA-2006 Compliant
• C.L.E.A.N. input/output clip detection and indicator LEDs
• Dual extruded heat sinks
• C.L.E.A.N. input/output clip detection and indicator LEDs
• Real time thermal sensing with Rollback technology
• Dimensions: 4.3"W x 8.3"L x 1.6"H

Alpine KTP-445A with NVX 8 Gauge Amp Kit

180W RMS Power Pack Series Class D 4-Channel Compact Amplifier

KTP445A_XKIT84 big
Go to item page Right Arrow Icon of Right Arrow

Alpine KTP-445A with NVX 8 Gauge Amp Kit

180W RMS Power Pack Series Class D 4-Channel Compact Amplifier

• 45 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Total RMS Power: 180 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

49
List price $507.99
-25% $380.31

In stock

Only 3 Left!

Add to Cart

• 45 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Total RMS Power: 180 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

Diamond Audio HX600.4 with NVX 8 Gauge Amp Kit

1000W RMS HEX Series 4-Channel Class-D Amplifier

HX6004_XKIT84 big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio HX600.4 with NVX 8 Gauge Amp Kit

1000W RMS HEX Series 4-Channel Class-D Amplifier

• 160 watts x 4 channel @ 4 ohm
• 250 watts x 4 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Amplifier
• Includes Amplifier Wiring Kit

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

39
List price $957.98
-16% $799.99

In stock

Only 2 Left!

Add to Cart

• 160 watts x 4 channel @ 4 ohm
• 250 watts x 4 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Amplifier
• Includes Amplifier Wiring Kit

JVC KS-DR2104DBT with NVX 8 Gauge Amp Kit

600W Peak (200W RMS) DRVN Series Class-D 4-Channel Amplifier with Bluetooth Remote

KSDR2104DBT_XKIT84 big
Go to item page Right Arrow Icon of Right Arrow

JVC KS-DR2104DBT with NVX 8 Gauge Amp Kit

600W Peak (200W RMS) DRVN Series Class-D 4-Channel Amplifier with Bluetooth Remote

• 50 watts x 4 channel @ 4 ohm
• 75 watts x 4 channel @ 2 ohm
• Bridged: 150 watts x 2 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

40
List price $546.79
-27% $399.00

In stock

Add to Cart

• 50 watts x 4 channel @ 4 ohm
• 75 watts x 4 channel @ 2 ohm
• Bridged: 150 watts x 2 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

Lowest price in 30 days

DS18 SMD-300.4AB with NVX 1/0 Gauge Amp Kit

1200W RMS Class AB SMD Series 4 Channel Car Amplifier with Bass Remote

SMD3004AB_XKIT04 big
Go to item page Right Arrow Icon of Right Arrow

DS18 SMD-300.4AB with NVX 1/0 Gauge Amp Kit

1200W RMS Class AB SMD Series 4 Channel Car Amplifier with Bass Remote

• 200 watts x 4 channel @ 4 ohm
• 300 watts x 4 channel @ 2 ohm
• Bridged: 600 watts x 2 channel @ 4 ohm
• Total RMS Power: 1200 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier
• Includes Amplifier Wiring Kit

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

86
List price $821.93
-13% $717.91

In stock

Only 2 Left!

Add to Cart

• 200 watts x 4 channel @ 4 ohm
• 300 watts x 4 channel @ 2 ohm
• Bridged: 600 watts x 2 channel @ 4 ohm
• Total RMS Power: 1200 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier
• Includes Amplifier Wiring Kit

NVX NBA201 Amplifier + NVX 4 Gauge Premium Amp Wiring Kit

700W Total RMS N-Series Class-AB 2-Channel Amplifier Package (Includes Amplifier and Amp Wiring kit)

NBA201, XKIT42 big
Go to item page Right Arrow Icon of Right Arrow

NVX NBA201 Amplifier + NVX 4 Gauge Premium Amp Wiring Kit

700W Total RMS N-Series Class-AB 2-Channel Amplifier Package (Includes Amplifier and Amp Wiring kit)

• 200 watts x 2 channel @ 4 ohm
• 350 watts x 2 channel @ 2 ohm
• Bridged: 1400 watts x 1 channel @ 4 ohm
• Total RMS Power: 700 watts
• CEA-2006 Compliant

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

132
List price $400.97
-55% $179.07

In stock

Add to Cart

• 200 watts x 2 channel @ 4 ohm
• 350 watts x 2 channel @ 2 ohm
• Bridged: 1400 watts x 1 channel @ 4 ohm
• Total RMS Power: 700 watts
• CEA-2006 Compliant

Autotek MM-2025.1D (Mean Machine) with Belva 4 Gauge Amp Kit

2000W Peak Class D Mean Machine Series Monoblock Car Amplifier

MM20251D_BAK42 big
Go to item page Right Arrow Icon of Right Arrow

Autotek MM-2025.1D (Mean Machine) with Belva 4 Gauge Amp Kit

2000W Peak Class D Mean Machine Series Monoblock Car Amplifier

• 500 watts Peak @ 4 ohm
• 1000 watts Peak @ 2 ohm
• 2000 watts Peak @ 1 ohm
• Total Peak Power: 2000 watts
• Class D Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

169
List price $259.98
-23% $199.99

In stock

Only 1 Left!

Add to Cart

• 500 watts Peak @ 4 ohm
• 1000 watts Peak @ 2 ohm
• 2000 watts Peak @ 1 ohm
• Total Peak Power: 2000 watts
• Class D Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

NVX 6x9" Coaxial Speakers with Installation Kit

Includes NVX 6x9" V-Series Coaxial Speakers, Baffle, Premium Sound Damping, Rubber Roller, Installer's Panel Removal Kit

VPRO69H_X2_ACC_KIT big
Go to item page Right Arrow Icon of Right Arrow

NVX 6x9" Coaxial Speakers with Installation Kit

Includes NVX 6x9" V-Series Coaxial Speakers, Baffle, Premium Sound Damping, Rubber Roller, Installer's Panel Removal Kit

•200 watts RMS
•1" Aluminum Horn Horn Tweeter
• Competition Grade Paper cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

266
List price $332.69
-38% $206.19

In stock

Only 3 Left!

Add to Cart

•200 watts RMS
•1" Aluminum Horn Horn Tweeter
• Competition Grade Paper cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB

Pioneer GM-D9701 with Amplifier Wiring Kit

1200W RMS Class D Monoblock Amplifier w/ Wired Bass Boost Remote

GM-D9701, XKIT42 big
Go to item page Right Arrow Icon of Right Arrow

Pioneer GM-D9701 with Amplifier Wiring Kit

1200W RMS Class D Monoblock Amplifier w/ Wired Bass Boost Remote

• RMS: 500W x 1 @ 4 ohm, 800W x 1 @ 2 ohm, 1200W x 1 @ 1 ohm
• Total Peak Power: 2400W
• CEA-2006 Compliant
• Variable Bass Boost: 0 to +18 dB
• Class D Circuitry
• Includes Amplifier Wiring Kit

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

44
List price $777.99
-28% $559.98

In stock

Add to Cart

• RMS: 500W x 1 @ 4 ohm, 800W x 1 @ 2 ohm, 1200W x 1 @ 1 ohm
• Total Peak Power: 2400W
• CEA-2006 Compliant
• Variable Bass Boost: 0 to +18 dB
• Class D Circuitry
• Includes Amplifier Wiring Kit

Rockford PM100X1K + NVX XKIT82 8 Gauge Amp Wiring Kit

Two Compact Full-Range Monoblock Amplifiers 60 watts RMS x 1 (each)

PM100X1K, XKIT82 big
Go to item page Right Arrow Icon of Right Arrow

Rockford PM100X1K + NVX XKIT82 8 Gauge Amp Wiring Kit

Two Compact Full-Range Monoblock Amplifiers 60 watts RMS x 1 (each)

• PM100X1K
• Punch Marine 100 Watt Full-Range Mono Amplifier (pair)
• Number of Channels: 1
• Frequency Response: 60Hz - 20kHz +/- 1.0dB
• Includes NVX XKIT82 8 Gauge Amp Wiring Kit

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

60
List price $405.98
$389.98

In stock

Only 2 Left!

Add to Cart

• PM100X1K
• Punch Marine 100 Watt Full-Range Mono Amplifier (pair)
• Number of Channels: 1
• Frequency Response: 60Hz - 20kHz +/- 1.0dB
• Includes NVX XKIT82 8 Gauge Amp Wiring Kit

Diamond Audio DMD1000.1D with NVX 4 Gauge Amp Kit

1000W RMS DMD Series Class-D Monoblock Amplifier

DMD10001D_XKIT42 big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio DMD1000.1D with NVX 4 Gauge Amp Kit

1000W RMS DMD Series Class-D Monoblock Amplifier

• 680 Watts x 1 @ 4 ohm
• 1000 Watts x 1 @ 2 ohm
• N/A @ 1 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

124
List price $593.98
-8% $546.98

In stock

Add to Cart

• 680 Watts x 1 @ 4 ohm
• 1000 Watts x 1 @ 2 ohm
• N/A @ 1 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

Alpine R2-A75M with NVX 4 Gauge Amp Kit

750W RMS R-Series Class-D Monoblock Car Amplifier

R2-A75M, XKIT42 big
Go to item page Right Arrow Icon of Right Arrow

Alpine R2-A75M with NVX 4 Gauge Amp Kit

750W RMS R-Series Class-D Monoblock Car Amplifier

• 500 watts x 1 channel @ 4 ohm
• 750 watts x 1 channel @ 2 ohm
• Total RMS Power: 750 watts
• Class D 2 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

124
List price $863.99
-31% $599.95

In stock

Add to Cart

• 500 watts x 1 channel @ 4 ohm
• 750 watts x 1 channel @ 2 ohm
• Total RMS Power: 750 watts
• Class D 2 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

Crunch SA-1100.2 with Belva 4 Gauge Amp Kit

1100 Watt Smash Series Class A/B 2 Channel Amplifier

SA11002_BAK42 big
Go to item page Right Arrow Icon of Right Arrow

Crunch SA-1100.2 with Belva 4 Gauge Amp Kit

1100 Watt Smash Series Class A/B 2 Channel Amplifier

• RMS Power: 30W x 2 @ 4 ohm, 35W x 2 @ 2 ohm
• Total Peak Power: 1100W
• CEA-2006 Compliant/Preamp Outputs/LPF
• Frequency Response: 10Hz-22kHz
• Includes Amplifier Wiring Kit

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

169
List price $149.98
-36% $96.23

Available

Ships in 10-14 days

Add to Cart

• RMS Power: 30W x 2 @ 4 ohm, 35W x 2 @ 2 ohm
• Total Peak Power: 1100W
• CEA-2006 Compliant/Preamp Outputs/LPF
• Frequency Response: 10Hz-22kHz
• Includes Amplifier Wiring Kit

Kenwood eXcelon XR401-4 with NVX 4 Gauge Amp Kit

400W RMS Excelon Series Class-D 4-Channel Amplifier w/ Bass Knob

XR4014_XKIT44 big
Go to item page Right Arrow Icon of Right Arrow

Kenwood eXcelon XR401-4 with NVX 4 Gauge Amp Kit

400W RMS Excelon Series Class-D 4-Channel Amplifier w/ Bass Knob

• 75 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 4-Channel Amplifier
• Includes Amplifier Wiring Kit

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

81
List price $675.99
-21% $534.63

In stock

Only 2 Left!

Add to Cart

• 75 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 4-Channel Amplifier
• Includes Amplifier Wiring Kit

Lowest price in 30 days

Rockford Fosgate Punch P600X4 + NVX XFLOC4 Line-Output-Converter + Amp Kit

600W 4-Channel Amplifier + NVX 4-Channel L.O.C. + 4 Gauge Amp Kit

P600X4, XFLOC4, BAK44 big
Go to item page Right Arrow Icon of Right Arrow

Rockford Fosgate Punch P600X4 + NVX XFLOC4 Line-Output-Converter + Amp Kit

600W 4-Channel Amplifier + NVX 4-Channel L.O.C. + 4 Gauge Amp Kit

• 75W x 4-Chan. @ 4 ohm
• 150W x 4-Chan. @ 2 ohm
• Built In NOMAD "Real Time" Analog Computer
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• MESHA3 Reduces MOSFET Temperatures for Improved Durability

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

70
List price $613.72
-17% $510.37

In stock

Add to Cart

• 75W x 4-Chan. @ 4 ohm
• 150W x 4-Chan. @ 2 ohm
• Built In NOMAD "Real Time" Analog Computer
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• MESHA3 Reduces MOSFET Temperatures for Improved Durability

Pioneer GM-D9701 with Amplifier Wiring Kit

1200W RMS Class D Monoblock Amplifier w/ Wired Bass Boost Remote

GM-D9701, BAK42 big
Go to item page Right Arrow Icon of Right Arrow

Pioneer GM-D9701 with Amplifier Wiring Kit

1200W RMS Class D Monoblock Amplifier w/ Wired Bass Boost Remote

• RMS: 500W x 1 @ 4 ohm, 800W x 1 @ 2 ohm, 1200W x 1 @ 1 ohm
• Total Peak Power: 2400W
• CEA-2006 Compliant
• Variable Bass Boost: 0 to +18 dB
• Class D Circuitry
• Includes Amplifier Wiring Kit
• Dimensions: 12-3/8"W x 7-7/8"D x 2-3/8"H

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

171
List price $609.99
-23% $469.99

In stock

Add to Cart

• RMS: 500W x 1 @ 4 ohm, 800W x 1 @ 2 ohm, 1200W x 1 @ 1 ohm
• Total Peak Power: 2400W
• CEA-2006 Compliant
• Variable Bass Boost: 0 to +18 dB
• Class D Circuitry
• Includes Amplifier Wiring Kit
• Dimensions: 12-3/8"W x 7-7/8"D x 2-3/8"H

Pioneer GM-DX971 with Amplifier Wiring Kit

1200W RMS GM Series Class-D Monoblock Car Amplifier with Bass Remote

GM-DX971, BAK42 big
Go to item page Right Arrow Icon of Right Arrow

Pioneer GM-DX971 with Amplifier Wiring Kit

1200W RMS GM Series Class-D Monoblock Car Amplifier with Bass Remote

• 500 watts x 1 channel @ 4 ohm
• 800 watts x 1 channel @ 2 ohm
• 1200 watts x 1 channel @ 1 ohm
• Total RMS Power: 1200 watts
• CEA-2006 Compliant
• Includes Amplifier Wiring Kit
• Class D 1 ohm Stable Monoblock Amplifier

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

171
List price $609.99
-23% $469.99

In stock

Add to Cart

• 500 watts x 1 channel @ 4 ohm
• 800 watts x 1 channel @ 2 ohm
• 1200 watts x 1 channel @ 1 ohm
• Total RMS Power: 1200 watts
• CEA-2006 Compliant
• Includes Amplifier Wiring Kit
• Class D 1 ohm Stable Monoblock Amplifier

Diamond Audio HXM800.2D with NVX 4 Gauge Amp Kit

800W RMS Motorsport Series Full-Range Class D 2-Channel Marine Amplifier

HXM8002D_XKIT42 big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio HXM800.2D with NVX 4 Gauge Amp Kit

800W RMS Motorsport Series Full-Range Class D 2-Channel Marine Amplifier

• 300 watts x 2 channel @ 4 ohm
• 400 watts x 2 channel @ 2 ohm
• Bridged: 800 watts x 1 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 2-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

124
List price $643.98
-10% $576.98

In stock

Only 2 Left!

Add to Cart

• 300 watts x 2 channel @ 4 ohm
• 400 watts x 2 channel @ 2 ohm
• Bridged: 800 watts x 1 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 2-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

Prev 5 6 7 8 9 Next

Items per page: 20 40 60

    Clear all
    why-shoping-with-sonic

    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
    Why Shop With Us?
    FAQ for Universal-Fit Audio & Electronics in 1978 320i

    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 1978 BMW 320i?

    A: Yes this page includes all the best Universal-Fit Audio & Electronics that work in your 320i.

    Save up to 10 different vehicles in your garage
    Vehicle
    Store     Delete

    1983 Jeep CJ7

    1968 Chevrolet Chevelle

    1978 BMW 320i

    2009 Lexus IS-F

    2000 BMW 328Ci

    2002 BMW X5

    2015 Ford Expedition

    2010 Mitsubishi Outlander

    1997 Dodge B3500

    1977 Chevrolet Nova

    Vehicle
    Store     Delete

    2003 Harley Davidson FXSTD/I Softail Deuce

    Add vehicle Clear all vehicles
    Where to find vehicle info
    Are you sure you want to clear your garage?
    This action cannot be undone. Confirm

    Cancel

    This category was not designed for products.
    If you continue, you will be redirected to a category customized for your vehicle. Continue

    Cancel

    Shop your 1978 320i
    Why Use a Vehicle Fit Guide?
    Change vehicle | Shop without vehicle
    Whoa! Slow down. Add your details below!
    additional information required
    Add vehicle details to confirm fitment
    Ignore fitment details
    Find stereos and more that work -- fast.
    Remove

    Can't find your vehicle? Click here and we'll help.

    Where to find vehicle info

    Go to Fitment

    Didn't find your car?

    Submit your details and we'll help!
    Please enter the letters as they are shown in the image above. Letters are not case-sensitive.
    Identify your vehicle and submodel details
    • Owner's manual
    • Vehicle's insurance card
    • Vehicle registration
    • Vehicle produced after 2005: Inside driver's side door
    • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
    Car Info Side Door Icon
    Vehicle Registration Icon
    Vehicle Insurance Icon
    Back

    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

    • You see only parts engineered for your exact vehicle
    • You avoid incompatible radios, speakers, or wiring
    • Installation is smoother, faster, and frustration-free
    • You get the correct accessories the first time

    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.

    Back
    Track your order
    Call our experts
    Support Center
    Return & Exchanges
    Follow on Instagram Instagram logo
    Subscribe on YouTube YouTube logo