RED WOLF Stereo Wiring Harness Fit for 2002-2008 GMC Envoy Sierra Chevy Silverado Impala Aftermarket Stereo Radio Wire Cable Connector Adapter

Car stereo installation wiring harness works great makes it easy to install car stereos

What to know is that the factory harness in the truck has not accessory power wire so the jumper that comes with this harness is very I'mportant tie all wires in to new harness besides the red wire on new harness you will jump this wire from an accessory wire coming from your ac control panel. You will need a volt meter to find the wire you need start by checking with switch off for a constant which will have 12v with switch off than turn switch on and hunt for another wire that reads around 12v this will be your jumper wire. Hope this helps.

Great plug fitting, good color coded wires

The wires didn't line up with my gm plug as stated. For example the 12v constant lines up with the ignition wire. Basically I had to run new one to the fuse panel. No biggie but they advertise as plug and play which in my case isnt totally accurate

Nice looking product but did not fit the application on my truck. Wound up having to find an oem wiring diagram and change all the pins around to make it work.

Low cost and delivered quickly. The product functioned as described.

So, for all intensive purposes, it works. Harness connector fits the factory plug, speakers are correct, power is correct, but the factory wiring does not have a 12v acc wire present, and you gotta have that for the unit to power up. This won't be an easy job for a beginner, and it was a bit of a pain for me, and I'd consider myself intermediate. The broken English in the instructions doesn't help...at all. A little research, and I found what I needed...which required a trip to the big box home improvement store. It started feeling like a "free" puppy $50 later.You're going to need a voltmeter, something to jump off of your fuse box (make sure you don't jump off of anything necessary for vehicle operation, and don't jump off of something that is continuously powered,) a little ingenuity, YouTube, anger management courses, NyQuil (so you can sleep at night and not think about why your radio isn't working,) lots of beer, and a strong vocabulary of curse words.Once you've ran that wire, it will attach to the red acc 12v wire from your new unit's harness. If you wired everything properly, you will have a working unit.You can search YouTube for "acc wire from fuse panel," and you should find what you need for that.I also ended up using a previously installed XM radio acc wire because the one supplied was too short. That's also why you'll need anger management courses.Keep in mind, no matter what harness you buy, you'll have this problem. This isn't an error on Red Wolf's part. But their instructions were garbage, and helped zero.Hope this helps, and be sure to just go ahead and get about 20-25 ft of similar gauge wire for your acc from the fuse panel. It's cheap, and it's better to have too much than not enough.

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