Garage
Shop

See all parts that fit your 2005 525i

Scosche BW01B Wiring Harness

Install a new car stereo in select 1990-2006 vehicles from BMW, Land Rover

Scosche
Shop all Scosche
highlight-star-icon

• Direct Connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required

See compatible vehicles Learn more about the bw01b

We apologize

This item has been discontinued


Loading...
95-9325B main

Metra 95-9325B

Single DIN or Double DIN Stereo Dash Kit and Harness for select 2004-2007 vehicles from BMW

-11.11%

$47.99

List price $53.99

Description


Scosche brand icon

Authorized dealer

Product Features:

Connections:

  • Yellow – 12V Constant
  • Red – 12V Accessory
  • Black - Ground
  • Orange – Dash Light Dimmer/Illumination
  • Green – Left Rear Speaker (+)
  • Green with Black Stripe Left Rear Speaker (-)
  • White – Left Front Speaker (+)
  • White with Black Stripe – Left Front Speaker (-)
  • Purple – Right Rear Speaker (+)
  • Purple with Black Stripe – Right Rear Speaker (-)
  • Gray – Right Front Speaker (+)
  • Gray with Black Stripe – Right Front Speaker (-)
  • Blue - Power Antenna

Compatible Vehicles


Please use our Fitment Guide to determine specific compatibility for the submodel and audio features

The vehicle you have selected 2005 BMW 525i is not compatible. Change vehicle or See list of compatible similar products


Loading...
CVP8 main

Cerwin-Vega CVP8 (Sold Individually)

350W Peak (170W RMS) 8" CVPRO Series Pro Full Range 4-ohm Speaker

-16.67%

$49.99

List price $59.99

DB402 main

Polk Audio DB402 (DB 402)

270W Peak (90W RMS) 4" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers

35
-9.99%

$90.00

List price $99.99

TS-A1081F main

Pioneer TS-A1081F

460W Peak (100W RMS) 4” A Series 2-way 4-ohm Coaxial Car Speakers

3
-18.18%

$90.00

List price $110.00

CVMPCL8.0 main

Cerwin Vega CVMPCL8.0 (Sold Individually)

400W Peak (200W RMS) 8" Stroker Pro Series Full Range 4-ohm Speakers

-16.67%

$139.99

List price $167.99

DMDX8 main

Diamond Audio DMDX8

390W Peak (130W RMS) 8" DMDX Series 2-Way Cocentric Coaxial Car Speakers

PPROV2-8 main

Rockford Fosgate Punch Pro V2 PPROV2-8

300W Peak (150W RMS) 8" Punch Pro Series Pro Audio Midrange 4-ohm Car Speakers

Limited time!
REF407F main

Infinity REF407F (INFSPKRF407FUS)

210W Peak (75W RMS) 4" Reference Series 2-Way Coaxial 3-ohm Speakers

-37.16%

$87.95

List price $139.95

EPICPRO8X main

AudioControl EPICPRO8X

700W Peak (500W RMS) 8" Epic Pro Series Pro Audio Midrange 4-ohm Speakers

H80C main

Cerwin-Vega H80C

900W Peak (300W RMS) 8" HED Series 2 Way Component 4-ohm Speaker System

-16.67%

$219.99

List price $263.99

S2-S80C main

Alpine S2-S80C

520W Peak (170W RMS) 8" S-Series Hi-Res 2-Way Component Car Speakers

1
-17.26%

$239.95

List price $290.00


Best selling similar products

DKGM-49 small

Crux DKGM-49 Stereo Replacement Interface

• Stereo Replacement Interface with Dash Kit
• Fits select 2006-2020 vehicles from GMC, Chevrolet, Buick Vehicles
• Accommodates ISO Double DIN Mount
• Retain steering wheel controls and chime functions

(41)

$129.60

List price $201.60

70-1761 small

Metra 70-1761 Wiring Harness

• Direct connection to the factory radio harness
• Color coded wires for easy installation
• No cutting or splicing required

(97)

$5.99

List price $6.99

70-1771 small

Metra 70-1771

• Direct Connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required

(51)

$12.99

List price $6.99

C2R-CHY4 small

PAC C2R-CHY4 Wiring Interface

• Provides 12-Volt accessory power (RAP)
• Designed for non-amplified and amplified models
• Retains balance and fade
• Pre-wired for steering wheel audio controls

(26)

$99.99

List price $299.00

70-5520 small

Metra 70-5520 Wiring Harness

• Direct Connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required

(56)

$9.95

List price $6.99

70-1858 small

Metra 70-1858 Wiring Harness

• Direct Connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required

(64)

$9.95

List price $6.99

70-7552 small

Metra 70-7552 Wiring Harness

• Direct Connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required

(35)

$10.99

List price $12.99

GM02B small

Scosche GM02B Wiring Harness

• Direct Connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required

(246)

$7.95

List price $8.99

SWRTY-61C small

Crux SWRTY-61C

• Direct connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required

(2)

$112.05

List price $174.30

70-1721 small

Metra 70-1721 Wiring Harness

• Direct Connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required

(27)

$6.99

List price $6.99

Specifications & Details


Harness Features
Vehicle Sound System
Standard Sound
Main Harness Function
Connect/Install an Aftermarket Car Stereo
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

BW01B

Weight:

0.25lbs

Internal SKU:

bw01b

Internal Product ID:

4425

Customer Ratings & Reviews


Scosche BW01B Wiring Harness thumbnail image

5 star
75%
4 star
17%
3 star
6%
2 star
0%
1 star
3%



Durability
4.6
Value
4.8
Features
4.7
Design
4.4
Usability
4.8

Customer Reviews

Sort by:

Loading...

Works fine

Easy to splice and follow. Wire colors were clear. Plastic was clean of burrs and fit correctly. No problems with installation.

By Chris on May 25, 2010

45 found this helpful


Works great with the stock wiring

Got this for my '98 BMW 328is with the HK system and stock amp. Works just as described and was a quick install. I just shortened the wires since there was a little too much between this and the head units wires. Been working great for a month now.

By Jeff on September 16, 2014

44 found this helpful


Just Works

Does everything it is supposed to do. Fitting it in my 1995 BMW 318ti was not too bad. I found a place to tuck the harness away to the left side of the head unit.

By Nick on July 9, 2014

44 found this helpful


Works great

it really made it easy to install my HU.

By Ruben on October 5, 2009

41 found this helpful


Easy install

The adapter made installation of my new radio a much easier task. It does make it a little more of a challenge to stuff all the wiring back into the cavity area behind the radio on a '98 bimmer. No cutting of the stock wiring is always a good thing if you can avoid it and this adapter is the trick.

By Lionel on December 22, 2014

40 found this helpful


order this harness for the kenwood stereo got what i needit right away from sonic

i have to let you people know that i have dealt with the customer service from sonic electronix and they have been more than helpful on getting the questions answered and the merchandise to the customer. very happy with their professionalism and expertise.. keep up the good work.

By Joe on December 13, 2009

40 found this helpful


works!

Umm yeah you need this! so get it now!
It works would recommend.

By AudioFreak Eh! on September 4, 2014

39 found this helpful


Wires in the harness are loose and cause distortion on bumps

The harness fit well to my deck, but the actual wires in the harness are extremely loose, and when i go over a bump, my music cuts off for just a quick moment, i'm attributing it to the loose wires in the harness. They should be quite fixed in the harness and they're not. I would suggest the company to create a more sturdy version

By Shariff on April 20, 2015 Checkmark Icon Verified purchase

40 found this helpful


Does the job, if you really need it.

If you might someday reinstall the factory unit back into your BMW then you should use this. Is your particular car so rare, is your new head unit so expensive that you might reinstall the factory unit?

This is a very large connector and is only one half of the connector. It takes up at least two square inches behind your new head unit. Valuable real estate in such a finite area of space.
Am I saying that you might be better off soldering or crimping the wires together? I am, if the first paragraph doesn't apply to your car.
I used it in my car this time and it cost me much time and effort. I will not be using it in my next install though.

By Chuck on January 23, 2014

38 found this helpful


A must Have

Save your sanity. This is a plug and play after you the connect to your new radio harness.

By bmwrat on August 7, 2015

37 found this helpful



BOBAZT main

Scosche BOBAZT Stereo Connector Kit

• Designed to connect in-dash receiver wiring harness to vehicle wiring harness

(27)

$9.95

List price $9.95


No picture

Samsung SND1080

Fixed Dome Network Camera

$522.00

List price $406.00

CY-BT200U small

Panasonic CY-BT200U

Bluetooth Hands-Free Cell Phone Kit with Audio Streaming and Phonebook Transfer

(8)

$44.99

List price $199.99

TA7801 small

MTX Audio TA7801 Thunder 7801

Class D Monoblock Super Amplifier Thunder7801

(8)

$269.99

List price $599.99

NTX-3108 small

DHD NTX-3108 Class X (Improved Class D)

$209.99

List price $399.99

Related Searches


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

2005 BMW 525i

2022 Ford Bronco

2002 Hyundai Sonata

2017 Honda HR-V

2024 Audi SQ5

2020 BMW X6

2001 Chevrolet Venture

2011 Infiniti M37

1999 Lexus SC300

2010 Jaguar XKR

Vehicle
Store
Delete

2001 Harley Davidson FXSTB Night Train

Vehicle
Store
Delete

2022 Can-Am Defender MAX HD9

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

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.