Wiring Harness - Low Price Guarantee | CarParts All our auto parts and accessories come with a low price guarantee. Shop here and get the best deal on your Wiring Harness purchase. Automotive Wiring Harness Repair, Wire Harness for Car How to Install a Car Stereo Wiring Harness in a '95 Chevrolet S-10. Step 3: Once the dashboard trim is out of the way, you can proceed to removing the car stereo. Just like the trim, the stereo is secured by a few clips. Detach the wiring harness from the back of the stereo afterwards. Step 4: Prepare your new wiring harness.