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2003 BMW X5

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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 2003 BMW X5

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.

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RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
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Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.
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Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.
Top-Mount Depth (Mounting Depth)
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Minimum Sealed Box Volume
This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Maximum Sealed Box Volume
This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
  Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
Main Cone Color
This is the color of the speaker's or subwoofer's cone.
Recommended Enclosure Type
This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Xmax (millimeters)
Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.
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DS18 SLC8S (Open Box, Great)

400W Peak (200W RMS) 8" SELECT Series Single 4-ohm Car Subwoofer

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DS18 SLC8S (Open Box, Great)

400W Peak (200W RMS) 8" SELECT Series Single 4-ohm Car Subwoofer

• Peak Power: 400 watts
• RMS Power: 200 watts
• Impedance: Single 4 ohm
• Paper Cone
• Foam Surround
• Mount depth: 3.85"
• Sensitivity: 84 dB

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• Peak Power: 400 watts
• RMS Power: 200 watts
• Impedance: Single 4 ohm
• Paper Cone
• Foam Surround
• Mount depth: 3.85"
• Sensitivity: 84 dB

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Rockford Fosgate Punch P3 P3SD4-8

300W Peak (150W RMS) 8" Punch Series Dual 4-ohm Shallow Car Subwoofer

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Rockford Fosgate Punch P3 P3SD4-8

300W Peak (150W RMS) 8" Punch Series Dual 4-ohm Shallow Car Subwoofer

• Peak Power: 300 watts
• RMS Power: 150 watts
• Impedance: Dual 4 ohm
• Anodized Aluminum Cone
• M-Roll Santoprene Surround
• Mount depth: 2.66"
• Sensitivity: 82 dB

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NVX - Worth the Envy - Direct to Consumer Car Audio

Deaf Bonce Apocalypse DB-SA272 D1

3000W Peak (1500W RMS) 12” Apocalypse Series Dual 1-ohm Car Subwoofer

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Deaf Bonce Apocalypse DB-SA272 D1

3000W Peak (1500W RMS) 12” Apocalypse Series Dual 1-ohm Car Subwoofer

• Peak Power: 3000 watts
• RMS Power: 1500 watts
• Pressed Paper Cone
• Foam Surround
• Impedance: Dual 1 ohm
• Mount depth: 7.07"
• Sensitivity: 86.20 dB

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Sundown Audio SML-8 D4 8" (SML8D4)

800W Peak (400W RMS) 8" SML Series Dual 4-ohm Shallow Car Subwoofer (SW-SML8D4)

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Sundown Audio SML-8 D4 8" (SML8D4)

800W Peak (400W RMS) 8" SML Series Dual 4-ohm Shallow Car Subwoofer (SW-SML8D4)

• Peak Power: 800 watts
• RMS Power: 400 watts
• Impedance: Dual 4 ohm
• Pressed Paper cone
• Pressed Foam surround
• Mount depth: 3.9"
• Sensitivity: 82.5 dB

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Alpine S2-W8D2

900W Peak (300W RMS) 8" S-Series Dual 2-ohm Car Subwoofer

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Alpine S2-W8D2

900W Peak (300W RMS) 8" S-Series Dual 2-ohm Car Subwoofer

• Peak Power: 900 watts
• RMS Power: 300 watts
• Impedance: Dual 2 ohm
• Carbon Fiber Polypropylene Cone
• High-Amplitude Multi-Roll (HAMR) Surround
• Mount depth: 3.71"
• Sensitivity: 82.6 dB

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Kicker L7S84 (44L7S84)

900W Peak (450W RMS) 8” Solo-Baric L7S Series Dual 4-ohm Subwoofer

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Kicker L7S84 (44L7S84)

900W Peak (450W RMS) 8” Solo-Baric L7S Series Dual 4-ohm Subwoofer

• Peak Power: 900 watts
• RMS Power: 450 watts
• Impedance: Dual 4 ohm
• Injection Molded Polypropylene Cone
• Ribbed Santoprene Surround
• Mount depth: 4-3/4"
• Sensitivity: 82.37 dB

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Deaf Bonce Apocalypse DB-4515R D2

9000W Peak (4500W RMS) 15” Apocalypse Series Dual 2-ohm Car Subwoofer

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Deaf Bonce Apocalypse DB-4515R D2

9000W Peak (4500W RMS) 15” Apocalypse Series Dual 2-ohm Car Subwoofer

• Peak Power: 9000 watts
• RMS Power: 4500 watts
• Impedance: Dual 2 ohm
• Carbon Fiber Cone
• Foam Surround
• Mount depth: 11.95"
• Sensitivity: 87.80 dB

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Sundown Audio SA-12 v.3 D2 12" (SA12V3D2)

3000W Peak (1500W RMS) 12" SA Series Dual 2-ohm Car Subwoofer (SAV312D2)

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Sundown Audio SA-12 v.3 D2 12" (SA12V3D2)

3000W Peak (1500W RMS) 12" SA Series Dual 2-ohm Car Subwoofer (SAV312D2)

• Peak Power: 3000 watts
• RMS Power: 1500 watts
• Impedance: Dual 2 ohm
• Competition Grade Paper Cone
• Foam Surround
• Mount depth: 8.4"
• Sensitivity: 84.05 dB

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• Peak Power: 3000 watts
• RMS Power: 1500 watts
• Impedance: Dual 2 ohm
• Competition Grade Paper Cone
• Foam Surround
• Mount depth: 8.4"
• Sensitivity: 84.05 dB

Sundown Audio SA-15 v.3 D2 15" (SA15V3D2)

3000W Peak (1500W RMS) 15" SA Series Dual 2-ohm Car Subwoofer (SAV315D2)

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Sundown Audio SA-15 v.3 D2 15" (SA15V3D2)

3000W Peak (1500W RMS) 15" SA Series Dual 2-ohm Car Subwoofer (SAV315D2)

• Peak Power: 3000 watts
• RMS Power: 1500 watts
• Impedance: Dual 2 ohm
• Competition Grade Paper Cone
• Foam Surround
• Mount depth: 8.65"
• Sensitivity: 88.22 dB

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List price $539.99
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• Peak Power: 3000 watts
• RMS Power: 1500 watts
• Impedance: Dual 2 ohm
• Competition Grade Paper Cone
• Foam Surround
• Mount depth: 8.65"
• Sensitivity: 88.22 dB

JL Audio 8W7AE-3

500W RMS 8" W7AE Series 3-ohm Car Subwoofer

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JL Audio 8W7AE-3

500W RMS 8" W7AE Series 3-ohm Car Subwoofer


• RMS Power: 500 watts
• Impedance: Single 3 ohm
• Polypropylene Cone
• Polyether Foam Surround
• Mount depth: 6.83"
• Sensitivity: 82.7 dB

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Kicker L7X122 (49L7X122)

2000W RMS 12" SoloX Series Dual 2-ohm Subwoofer

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Kicker L7X122 (49L7X122)

2000W RMS 12" SoloX Series Dual 2-ohm Subwoofer

• RMS Power: 1000 - 2000 watts
• Impedance: Dual 2 ohm
• Double-pressed pulp Cone
• UV-resistant Santoprene Surround
• Mount depth: 10-1/8"

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• RMS Power: 1000 - 2000 watts
• Impedance: Dual 2 ohm
• Double-pressed pulp Cone
• UV-resistant Santoprene Surround
• Mount depth: 10-1/8"

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Sundown Audio Z-18 v.7 D2 18" (Z18V7D2)

7000W Peak (3500W RMS) 18" Z Series Dual 2-ohm Car Subwoofer (SW-ZV718D2)

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Sundown Audio Z-18 v.7 D2 18" (Z18V7D2)

7000W Peak (3500W RMS) 18" Z Series Dual 2-ohm Car Subwoofer (SW-ZV718D2)

• Peak Power: 7000 watts
• RMS Power: 3500 watts
• Impedance: Dual 2 ohm
• Treated Paper Cone
• Treated Foam Surround
• Sensitivity: 91.07 dB

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List price $1679.99
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Rockford Fosgate Power T1 T1D215

2000W Peak (1000W RMS) 15" Power Series Dual 2-ohm Car Subwoofer

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Rockford Fosgate Power T1 T1D215

2000W Peak (1000W RMS) 15" Power Series Dual 2-ohm Car Subwoofer

• Peak Power: 2000 watts
• RMS Power: 1000 watts
• Impedance: Dual 2 ohm
• Kevlar Reinforced Pulp Paper Cone
• Santoprene Rubber Surround
• Mount depth: 8.39"
• Sensitivity: 88 dB

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Hifonics Elite 8" (HEW8D2)

1200W Peak (600W RMS) 8" Hifonics Elite Series Dual 2-ohm Subwoofer

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Hifonics Elite 8" (HEW8D2)

1200W Peak (600W RMS) 8" Hifonics Elite Series Dual 2-ohm Subwoofer

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 2 ohm
• Polypropylene Cone
• Double Stitched Foam Surround
• Mount depth: 5.66"
• Sensitivity: 81.2 dB

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DS18 IXS12.4S (Open Box, Great)

1600W Peak (800W RMS) 12" IXS Series Single 4-ohm Shallow Car Subwoofer

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DS18 IXS12.4S (Open Box, Great)

1600W Peak (800W RMS) 12" IXS Series Single 4-ohm Shallow Car Subwoofer

• Peak Power: 1600 watts
• RMS Power: 800 watts
• Paper Cone
• Rubber Surround
• Impedance: Single 4 ohm
• Mount depth: 4.33"
• Sensitivity: 85.1 dB

10% Off Open Box!
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List price $263.95
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• Peak Power: 1600 watts
• RMS Power: 800 watts
• Paper Cone
• Rubber Surround
• Impedance: Single 4 ohm
• Mount depth: 4.33"
• Sensitivity: 85.1 dB

Limited time!

Kicker L7R152 (45L7R152) (Open Box, Good)

1800W Peak (900W RMS) 15” Solo-Baric L7R Series Dual 2-ohm Subwoofer

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Kicker L7R152 (45L7R152) (Open Box, Good)

1800W Peak (900W RMS) 15” Solo-Baric L7R Series Dual 2-ohm Subwoofer

• Peak Power: 1800 watts
• RMS Power: 900 watts
• Impedance: Dual 2 ohm
• Injection-molded SoloKon Cone
• Ribbed Santoprene Surround
• Mount depth: 8 3/8"
• Sensitivity: 88.05 dB

10% Off Open Box!
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List price $399.99
-45% $221.99
$199.79 with coupon | Price details

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• Peak Power: 1800 watts
• RMS Power: 900 watts
• Impedance: Dual 2 ohm
• Injection-molded SoloKon Cone
• Ribbed Santoprene Surround
• Mount depth: 8 3/8"
• Sensitivity: 88.05 dB

Massive Audio SUMMOXL104

3000W Peak (1500W RMS) 10" SUMMO Series Dual 4-ohm Car Subwoofer

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Massive Audio SUMMOXL104

3000W Peak (1500W RMS) 10" SUMMO Series Dual 4-ohm Car Subwoofer

• Peak Power: 3000 watts
• RMS Power: 1500 watts
• Impedance: Dual 4 ohm
• Non-Pressed Paper Cone
• Foam Surround
• Mount depth: 6.81"
• Sensitivity: 90.3 dB

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Alpine RS-W12D2

1800W Peak (600W RMS) 12” R-Series Dual 2-ohm Shallow Car Subwoofer

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Alpine RS-W12D2

1800W Peak (600W RMS) 12” R-Series Dual 2-ohm Shallow Car Subwoofer

• Peak Power: 1800 watts
• RMS Power: 600 watts
• Impedance: Dual 2 ohm
• Polypropylene Cone
• Butyl Rubber Surround
• Mount depth: 3.22"
• Sensitivity: 82 dB

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DS18 EXL-X6.2D

800W Peak (400W RMS) 6.5" EXL-X Series Dual 2-ohm Car Subwoofer

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DS18 EXL-X6.2D

800W Peak (400W RMS) 6.5" EXL-X Series Dual 2-ohm Car Subwoofer

• Peak Power: 800 watts
• RMS Power: 400 watts
• Impedance: Dual 2 ohm
• Non-Pressed Paper Cone
• Foam Surround
• Mount depth: 4.25"
• Sensitivity: 89.8 dB

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$119.95

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• Peak Power: 800 watts
• RMS Power: 400 watts
• Impedance: Dual 2 ohm
• Non-Pressed Paper Cone
• Foam Surround
• Mount depth: 4.25"
• Sensitivity: 89.8 dB

Hifonics Elite 8" (HEW8D4)

1200W Peak (600W RMS) 8" Hifonics Elite Series Dual 4-ohm Subwoofer

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Hifonics Elite 8" (HEW8D4)

1200W Peak (600W RMS) 8" Hifonics Elite Series Dual 4-ohm Subwoofer

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Double Stitched Foam Surround
• Mount depth: 5.66"
• Sensitivity: 80 dB

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List price $189.00
-11% $169.00

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• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Double Stitched Foam Surround
• Mount depth: 5.66"
• Sensitivity: 80 dB

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