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๐ Upgrade your GMโs sound gameโno hacks, just pure audio bliss!
The Scosche SHGM03B Car Speaker Wiring Harness Adapter is a precision-engineered solution designed for select 1984-2009 GM vehicles. It enables seamless, no-cut installation of aftermarket speakers by connecting directly to factory wiring harnesses. Crafted from OEM-quality materials, it ensures superior sound clarity and signal integrity. Compatible with all car audio speakers, this adapter is perfect for DIY enthusiasts and professionals seeking a hassle-free upgrade backed by Scoscheโs lifetime warranty and tech support.











| ASIN | B001TDKJUI |
| Best Sellers Rank | #27 in Car Speaker Wiring Harnesses #261 in Car Audio & Video Wiring Harnesses |
| Brand | Scosche |
| Brand Name | Scosche |
| Cable Type | Speaker Wire |
| Connector Type | Speaker Connectors |
| Customer Reviews | 4.3 out of 5 stars 500 Reviews |
| Global Trade Identification Number | 00033991004887 |
| Included Components | SHGM03B |
| Item Dimensions | 0.5 x 4.38 x 7.5 inches |
| Item Type Name | SCOSCHE SHGM03B Car Speaker Wiring Harness Connector Kit Compatible with SELECT 1985-Up General Motors Vehicles |
| Item Weight | 0.04 Pounds |
| Item dimensions L x W x H | 0.5 x 4.38 x 7.5 inches |
| Manufacturer | SCOSCHE |
| Material | Acrylonitrile Butadiene Styrene |
| Material Type | Acrylonitrile Butadiene Styrene |
| Model | SHGM03B |
| Number of Items | 1 |
| Part Number | SHGM03B |
| UPC | 033991004887 |
| Unit Count | 2.0 Count |
| Warranty Description | Backed by Scoscheโs Lifetime Tech Support and Lifetime Limited Warranty |
E**C
Scosche SHGM03B 1985 and Up GM Universal Speaker wire set up
I purchased the Pioneer 1674 speaker set along with Scosche SHGM03B 1985 and Up GM Universal Speaker wire set up. This made installing my speakers in my 2000 Silverado, a piece of cake. I snapped my speaker wires into the universal wire set which made installation so easy. No soldering or crimping of wires. I used my factory speaker retainers and popped them into the door. No screws! The speakers sounded great. I new my old ones were bad but I didn't know how bad till I heard these new speakers. Wow.
J**E
worked great
fits on my 2012 impala. fit the stock wiring harness just about perfectly- was a bit tight, but went- same on the other ends(s) was a bit tough getting em on the speaker terminals- but again went, with coaxing. Note- the speaker ends--- the wire is split on the speaker end and has a small and large female "speaker" slide on thingie terminals. which matched my new speakers perfect (jbl)...so if your speaker have those standard plain terminals (one small, one large)- you're golden. PSS- i dont think the picture is correct either
T**H
Good buy
Perfect fit, tight and snug, and sounds GREAT with my kenwood speakers!!!
E**T
Infinty Reference 6032CF
I chose the infinty 6032cf because I' partial to Infinty. I hane Infinity Tower Spaeakers at home and I love the sound. These speakers did not let me down. The Clarity, highs, mids, and bass are good. For 6 and a half inch the bass is good, not door thumping. you will still need a sub woofer for deep bass. I should of given the 6032 five stars, they deserve it. The reason for 4 stars are not the fault of the speakers but the screw my 2003 GMC came with. The screws in my truck have a very large flat head and since the infinity's butyl surround are edge surround the head of the screws pull on them when tightening them up. I also ordere the Scosche SHGM03B speaker harnes for the install. The Scosche worked perfectly, made the install a breeze. They are indeed 5 star speakers. I would highly reccomend the 6032cf, but find small head screws to mount to door panel.
A**A
Perfect
Perfect Fit a 2004 Chevy 3500
C**Z
Doesn't fit
Does not fit 2006 Pontiac Grand Prix Gt with Monsoon.
M**K
Awesome
These speaker harnesses are awesome. The thing I tried to look at the most when reading other reviews was the year and models people were using them on. So here's mine: 2000 chevy silverado (new body style in that year). It is nice to have an adapter that I just plug into the trucks wiring harness, and in the future when I need to swap or replace the speaker I am not having to cut and resplice a bunch of wires.
A**R
Exactly as needed for C5 Z06
These adapters plugged right into factor speaker wiring harness.
A**R
Direct fit for GM800 chassis
Used for a 2000 Chevrolet Silverado 2500, way quicker than just hard wiring new speakers in. Plugged in directly to the factory harness
A**Y
It works
Bought for my '08 Cobalt. No issues at all, not really much to say about them
Trustpilot
3 weeks ago
1 month ago