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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 | #104 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 7,891 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**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.
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.
R**.
Ok
Ok
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**S
Nice
Great
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 weeks ago
3 days ago