Brand-new,never ever been utilized,all parts are tested and quality controlled prior to shipment.. car stereo radio wiring harness is NOT COMPATIBLE FOR AMP SYSTEMS, Red wiring is not for all models, but if the radio harness of your vehicle does not have an ignition wire, the aftermarket stereo cannot be turned off/on through the radio harness. To solve this problem, you need to get a 12v power supply from the ignition by running the red cable separately from the radio harness.. Fitment:for 2002-2008 GMC Envoy Sierra Chevy Silverado Impala.. Package Includes: 1x Wiring Harness as pictured..
