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🔧 Upgrade your ride’s sound system with zero hassle—because your car deserves the best!
The Scosche GM02B Car Stereo Wiring Harness is a precision-engineered, plug-and-play solution designed for select non-amplified 1986-2005 General Motors vehicles. It simplifies aftermarket radio installation by eliminating wire cutting, featuring OEM-quality materials, industry-standard color-coded wiring, and pre-terminated connectors. Supported by Scosche’s lifetime tech support and limited warranty, it ensures a durable, reliable upgrade for your vehicle’s audio system.










| ASIN | B0004FQRLC |
| Best Sellers Rank | #57 in Car Audio & Video Wiring Harnesses |
| Brand | Scosche |
| Brand Name | Scosche |
| Cable Type | Multi-Pin |
| Connector Type | Multi-pin |
| Customer Reviews | 4.4 out of 5 stars 7,881 Reviews |
| Global Trade Identification Number | 00033991005716 |
| Included Components | Wiring Harness and Manual |
| Item Dimensions | 6 x 2 x 50 inches |
| Item Weight | 0.1 Grams |
| Item dimensions L x W x H | 6 x 2 x 50 inches |
| Manufacturer | Scosche |
| Material | Plastic |
| Material Type | Plastic |
| Model | GM02B |
| Part Number | GM02b |
| Recommended Uses For Product | Audio |
| UPC | 033991005716 |
| Unit Count | 1.0 Count |
| Warranty Description | Limited Lifetime |
C**R
A "lifesaver" for sure!
It's so much easier to use an adapter for an aftermarket radio installation. Too many connections and too easy to make a mistake. Just wire it to the harness for the new radio following the diagrams for the radio and the adapter. Plug the radio harness into it and the adapter into the vehicle radio harness and you are good to go. Make sure you fasten the wires securely and they are insulated from touching the vehicle or each other. I used insulated connectors and shrink tube for added protection. IMPORTANT: In my installation the vehicle harness was VERY different in the same year and radio. 1990 Chevy Suburban (I didn't expect to find an adapter to fit) I suggest you pull your old radio out and take pictures of the vehicle harness. When you find the adapter here, compare the vehicle harness to the adapter pictures to make sure you get the correct one. I didn't do that so, of course, I ordered the wrong one and had to get the correct one. (Thanks for the return policy of Amazon, EASIEST return every!) Installing a radio couldn't be easier. If I install another radio I'll definitely get the adapter harness for the vehicle. I'd also order an antenna wire extender too. A little more slack on it never hurts.
C**S
Perfect brand making for easy installation. Great fit and quality!
This works so well you won’t believe it. Wire up your new radio right on the table to this harness then go out to your car unbolt the old unit and install the new one faster than reading this review. Just plug it in that’s it. This company makes a quality harness adapter that fits perfectly every time. Worth every penny. Allows you to put your stock radio back in before you sell the vehicle with no hassles. Definitely recommend it!
C**R
Car stereo wiring
Great product & service!
J**D
Worked nicely
2002 Silverado 2500HD: Unplugged the old radio from harness, installed this harness and wired up the new radio. I was a little frustrated that ALL of the wires were labeled with (LF) which initially I mistook as Left Front speaker and started wiring and then noticed that all wires had it on them. Would have been nice if each wire were labeled correctly but not a huge deal. (Some wires were labeled with small flags or tabs) Well after looking around for a schematic, eventually I just decided to follow the color coding and it worked out exactly as it was supposed to.
J**H
Perfect
Perfect for my needs. Wiring exactly matched my new radio. Plug and play with my s10 pickup. Made the whole install an easy, flawless success. Glad I bought it.
K**D
This Harness worked great for my 2002 Chevy Tahoe
This Harness worked great for my 2002 Chevy Tahoe. The only problem that I had ( WHICH WAS NOT THE FAULT OF THIS WIRING HARNESS) was that I have the separate cd changer and powered sub-woofer. So when I connected everything together I had no sound. The stereo had two connectors on the back. This connector only fits the one. I couldn't find anything for the second connector which goes to the cd changer and was told I didn't need it. I find out from a person on you tube that the pink wire on the second connector has to connect to the power amp lead as well. Once I connected the jumper wire to the amp lead Ihad sound.This harness did exactly what I needed it to do and I didn't have any issues with it.
J**.
Does not fit
It is rather misleading to infer that this will work in replacing a factory radio with an after market one. After contacting Scosche customer service, because this adapter did not fit/work in connecting to my vehicle wire harness. I was directed to buy the GM2000SW adapter which included the chime box. This adapter was a direct plug in to my vehicle wiring harness for the radio portion of the car. After finally having the correct parts, installation was a breeze. If you are going to replace your factory radio, I suggest contacting Scosche directly and learning exactly what you need to purchase to facilitate ease of installation. Amazon is a good source to buy from, however it is somewhat erroneous in providing the correct components at times.
R**B
The bad, then the good news.
The first items I ordered were for my 2002 Buick Rendezvous. The bracket insert fit fine but the harness did not and caused all my gauges to malfunction. The harness instruction should have mentioned that and additional adapter was needed and it did not. In fact the adapter suggested cost almost twice what my new stereo did. Had this information been revealed I would not have purchased the faceplate adapter and radio harness for that vehicle that had steering wheel audio controls. However I took a chance and ordered a different faceplate and harness for my 1995 Chevy Silverado that DID NOT have steering wheel audio controls. Once I got all the factory wires connected to this new harness adapter everything went swimmingly and I am very happy with the simplicity and final performance of the new stereo in my truck.
J**L
Worked great
Worked great, I just had to solder it with the aftermarket radio's provided harness and then everything was plug-and-play. The connector's plastic felt solid, and the connection to the truck's harness felt secure.
M**Z
Funcional
Llego antes de tiempo y excelente funcion
H**O
Llego Muy rapido!!
A**R
Simple and quick install
This worked like a mf charm. Installed into 93 k1500 without any issue at all. Great product
V**.
Bien adaptador
En mi caso son fallas y sirve para el propósito
Trustpilot
2 months ago
3 weeks ago