Crutchfield custom wiring harnesses will save you many steps when installing an aftermarket stereo in your car. Simply splice the colour-coded wires on your Crutchfield harness to the wires from your aftermarket stereo — and do it in the comfort of your home without having to struggle with splicing wires behind your dash.

Next, plug the Crutchfield harness into the harness that you removed from your factory radio. Check to make sure that everything's working properly, then finish installing your new stereo.

Since you didn't have to cut off your car's original radio connector, it's easier to put the factory radio back in when you sell your vehicle or return it at the end of the lease. Just plug the factory radio back in and keep the aftermarket stereo. Best of all, the harness is free with most of the stereos Crutchfield offers. Warranty: 30 days.