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1991 BMW 850i

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.

Universal-Fit Audio for 1991 BMW 850i

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.

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NVX XAGU48

4/8 Gauge AWG AGU In-ine Fuse Holder for Car Audio and Marine Audio

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4/8 Gauge AWG AGU In-ine Fuse Holder for Car Audio and Marine Audio

• 4/8 Gauge In-line Fuse Holder
• Satin Chrome Plated For Excellent Power Transfer And Great Design
• Screw Terminals Hold Cables Securely In Place
• Smoked Heat Resistant Housing

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List price $9.99
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• 4/8 Gauge In-line Fuse Holder
• Satin Chrome Plated For Excellent Power Transfer And Great Design
• Screw Terminals Hold Cables Securely In Place
• Smoked Heat Resistant Housing

Limitless Lithium Nano-OEM-27AH

14V 27Ah Lithium Iron Phosphate (LFP) Motorcycle and Powersports Battery

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14V 27Ah Lithium Iron Phosphate (LFP) Motorcycle and Powersports Battery

• 14.8-volt Lithium Motorcycle and Powersports Battery
• Sealed Lithium Iron Phosphate (LFP) design
• Perfect for 2000 - 2500 watt audio systems
• Ideal for primary and secondary battery applications
• Compatible with motorcycle and powersports applications

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$499.00

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• 14.8-volt Lithium Motorcycle and Powersports Battery
• Sealed Lithium Iron Phosphate (LFP) design
• Perfect for 2000 - 2500 watt audio systems
• Ideal for primary and secondary battery applications
• Compatible with motorcycle and powersports applications

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Beat-Sonic BR02

Universal Video Inputs Expansion for Vehicles with Single-Input Monitors

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Universal Video Inputs Expansion for Vehicles with Single-Input Monitors

• Adds additional inputs to display to monitor(s)
• Works great with vehicles limited to only one video input
• Equipped with a noise resistant aluminum shield
• Kit includes module and male to male RCA cable adapter

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List price $86.00
-9% $77.99

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• Adds additional inputs to display to monitor(s)
• Works great with vehicles limited to only one video input
• Equipped with a noise resistant aluminum shield
• Kit includes module and male to male RCA cable adapter

Stinger SPXWPRGB5

5" RGB LED Double-Sided Single Strip Light Whip and Flagpole with Remote Control

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5" RGB LED Double-Sided Single Strip Light Whip and Flagpole with Remote Control

• 5" RGB LED Light Whip and Flagpole
• 160 super bright 5050 RGB LEDs
• Customized lighting with 20 static colors and 9 dynamic modes
• Five different speed and brightness levels
• Remote control included

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• 5" RGB LED Light Whip and Flagpole
• 160 super bright 5050 RGB LEDs
• Customized lighting with 20 static colors and 9 dynamic modes
• Five different speed and brightness levels
• Remote control included

Dual MANT16B

16" Marine AM/FM Antenna with Swivel Base and 54" Cable (Black)

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16" Marine AM/FM Antenna with Swivel Base and 54" Cable (Black)

• Marine stereo AM/FM antenna with flexible mast
• Includes 180° swivel base and 54" antenna cable
• Made with durable steel and corrosion-resistant rubber cover

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$19.99

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• Marine stereo AM/FM antenna with flexible mast
• Includes 180° swivel base and 54" antenna cable
• Made with durable steel and corrosion-resistant rubber cover

NVX XUBT3 Universal Bluetooth Controller Knob (Open Box, Great)

Universal Bluetooth Audio Receiver & Volume/Playback Controller Knob for Cars, Trucks, Motorcycles, ATVs & Boats (X-Series)

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Universal Bluetooth Audio Receiver & Volume/Playback Controller Knob for Cars, Trucks, Motorcycles, ATVs & Boats (X-Series)

• iPhone, Android & Bluetooth Device Ready
• One Knob Controls it all - Track, Pause & Volume
• Flush in Dash or Under Dash Mounting options
• Add-on to any Radio or Device with AUX input

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List price $99.99
-58% $41.99

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• iPhone, Android & Bluetooth Device Ready
• One Knob Controls it all - Track, Pause & Volume
• Flush in Dash or Under Dash Mounting options
• Add-on to any Radio or Device with AUX input

JL Audio 8W3V3-4

250W RMS 8" W3v3 Series Single 4-ohm Car Subwoofer

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250W RMS 8" W3v3 Series Single 4-ohm Car Subwoofer

• RMS Power: 250 watts
• Impedance: Single 4 ohm
• Mineral-Filled Polypropylene Cone
• Nitrile Butadiene Rubber NBR Surround
• Mount depth: 4.63"
• Sensitivity: 83.24 dB

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$349.99

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Atrend 12TKD

Empty Dual 12" Truck Sealed Subwoofer Enclosure

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Empty Dual 12" Truck Sealed Subwoofer Enclosure

• 12" Dual Truck Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Universal truck (wedge) enclosure design
• Miter and Dado construction
• Premium black carpet finish
• Silver spring loaded terminal cups
• Glued and braced with fasteners
• Total box volume: 1.38 cubic feet

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Limitless Lithium NoLi-30AH

12V 30Ah Sodium-Ion (SIB) Car Power Cell Battery

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12V 30Ah Sodium-Ion (SIB) Car Power Cell Battery

• 12-volt Sodium Car Audio Power Cell
• Sealed SIB (Sodium Ion Battery) design
• Perfect for 4000 - 5500 watt car audio stereo systems
• 4000 Cell Life Cycles at 80% DOD
• Ultra lightweight at only 9.9 lbs.

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$699.00

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• 12-volt Sodium Car Audio Power Cell
• Sealed SIB (Sodium Ion Battery) design
• Perfect for 4000 - 5500 watt car audio stereo systems
• 4000 Cell Life Cycles at 80% DOD
• Ultra lightweight at only 9.9 lbs.

Heise HE-DRL40

240W Universal 40" DRL Series Dual Row 76 LED Light Bar

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240W Universal 40" DRL Series Dual Row 76 LED Light Bar

• Universal 40" Double Row LED Light Bar
• Water-resistant IPX-67 Rating
• Flood/Spot Combo Beam Pattern
• Integrated epoxy-encapsulated electronics
• Includes brackets and mounting hardware

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List price $574.00
-30% $399.00

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• Universal 40" Double Row LED Light Bar
• Water-resistant IPX-67 Rating
• Flood/Spot Combo Beam Pattern
• Integrated epoxy-encapsulated electronics
• Includes brackets and mounting hardware

Tru Spec S12 Elite XXL (854)

Empty Single 12" Vented Prefabricated Square Enclosure for Select Sundown Subwoofers

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Empty Single 12" Vented Prefabricated Square Enclosure for Select Sundown Subwoofers

• 12" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 2.50 cubic feet
• Compatible with select Sundown subwoofers (Sold separately)

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List price $479.99
-17% $399.99

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Axxess AXCSD-6V

12V to 6V Step-Down Converter for Factory Backup Camera

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12V to 6V Step-Down Converter for Factory Backup Camera

• 12-volt to 6-volt step down converter
• Provides proper voltage for a 6V factory backup
• Includes a wiring harness with three wires

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List price $38.99
-10% $34.99

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• 12-volt to 6-volt step down converter
• Provides proper voltage for a 6V factory backup
• Includes a wiring harness with three wires

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Stinger SI433

4000 Series 2-Channel Auxiliary Cable to Stereo RCA Interconnect - 3 FT

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4000 Series 2-Channel Auxiliary Cable to Stereo RCA Interconnect - 3 FT

• 3.5mm to RCA
•Twisted Pair Interconnect
• 3 FT Long

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List price $29.00
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• 3.5mm to RCA
•Twisted Pair Interconnect
• 3 FT Long

Tru Spec Dual 6.5 (1456ER)

Empty Dual 6.5" Vented Prefabricated Enclosure

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Empty Dual 6.5" Vented Prefabricated Enclosure

• 6.5" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 0.6 cubic feet
• Compatible for Sundown SA65V2 and similar subwoofers (Sold separately)

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$149.99

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Shuriken SK-BT20

12V 20Ah Absorbed Glass Mat (AGM) Rechargeable Battery

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12V 20Ah Absorbed Glass Mat (AGM) Rechargeable Battery

• 12-volt Automotive Absorbed Glass Mat (AGM) Battery
• Sealed Absorbed Glass Mat (AGM) design
• Perfect for 600 watts car audio stereo systems
• Can be mounted in any position
• Can be fully discharged and re-charged

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-11% $135.99

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Used from: $95.19

• 12-volt Automotive Absorbed Glass Mat (AGM) Battery
• Sealed Absorbed Glass Mat (AGM) design
• Perfect for 600 watts car audio stereo systems
• Can be mounted in any position
• Can be fully discharged and re-charged

Crimestopper LP-FRAME-CHR

License Plate Frame for CAM-300 and CAM-400 Backup Camera (Chrome)

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License Plate Frame for CAM-300 and CAM-400 Backup Camera (Chrome)

• Full Frame License Plate Frame Camera Bracket
• Works exclusively with CAM-300 and CAM-400
• High shine chrome metal finish
• Hidden wiring for easy installation

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• Full Frame License Plate Frame Camera Bracket
• Works exclusively with CAM-300 and CAM-400
• High shine chrome metal finish
• Hidden wiring for easy installation

Cerwin Vega CCB200

200A 0/4-Gauge Input 0/4-Gauge Output Premium Circuit Breaker

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200A 0/4-Gauge Input 0/4-Gauge Output Premium Circuit Breaker

• Premium Circuit Breaker
• Power Rating: 200A
• Input Gauge Size: 0 - 4 AWG
• Ouput Gauge Size: 0 - 4 AWG
• Platinum plated for stable performance
• Low-resistance, high-current ability

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List price $47.99
-17% $39.99

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• Premium Circuit Breaker
• Power Rating: 200A
• Input Gauge Size: 0 - 4 AWG
• Ouput Gauge Size: 0 - 4 AWG
• Platinum plated for stable performance
• Low-resistance, high-current ability

Sundown Audio E8 v.6 D2 8" (E8V6D2)

800W Peak (400W RMS) 8" E Series Dual 2-ohm Car Subwoofer (SW-EV68D2)

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800W Peak (400W RMS) 8" E Series Dual 2-ohm Car Subwoofer (SW-EV68D2)

• Peak Power: 800 watts
• RMS Power: 400 watts
• Impedance: Dual 2 ohm
• Pressed Paper Cone
• Pressed Foam Surround
• Mount depth: 4.98"
• Sensitivity: 82.4 dB

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List price $203.99
-17% $169.99

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PRV Audio MDX2000.4 2 Ohm

2000W RMS Class D MDX Series 4-Channel Compact Car and Motorsport Amplifier

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2000W RMS Class D MDX Series 4-Channel Compact Car and Motorsport Amplifier

• 330 watts x 4 channel @ 4 ohm
• 500 watts x 4 channel @ 2 ohm
• Bridged: 1000 watts x 2 channel @ 4 ohm
• Total RMS Power: 2000 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Save 30% off an NVX XKIT44 Amp Kit at Checkout!
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List price $274.89
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MDX2000.4 2 Ohm main
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NVX XKIT44

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• 330 watts x 4 channel @ 4 ohm
• 500 watts x 4 channel @ 2 ohm
• Bridged: 1000 watts x 2 channel @ 4 ohm
• Total RMS Power: 2000 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Orion HCCA122

10000W Peak (2500W RMS) 12" HCCA Series Dual 2-ohm Competition Car Subwoofer

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10000W Peak (2500W RMS) 12" HCCA Series Dual 2-ohm Competition Car Subwoofer

• Peak Power: 10000 watts
• RMS Power: 2500 watts
• Impedance: Dual 2 ohm
• Moisture and UV-resistant Paper cone
• Nitrile Butadiene Rubber (NBR)-Foam surround
• Mount depth: 10.28"
• Sensitivity: 84.22 dB

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• Peak Power: 10000 watts
• RMS Power: 2500 watts
• Impedance: Dual 2 ohm
• Moisture and UV-resistant Paper cone
• Nitrile Butadiene Rubber (NBR)-Foam surround
• Mount depth: 10.28"
• Sensitivity: 84.22 dB

NVX - Worth the Envy - Direct to Consumer Car Audio

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    FAQ for Universal-Fit Audio & Electronics in 1991 850i

    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 1991 BMW 850i?

    A: Yes this page includes all the best Universal-Fit Audio & Electronics that work in your 850i.

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

    • You see only parts engineered for your exact vehicle
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    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.