I have a 91 3Kgt VR4 that has the factory Cassette/CD player in it (no shit, couldn't believe it myself) and it is fooqed up. My buddy gave me a pioneer DEH-P6600 for it so I ordered the mounting kit and harness adapters. I took the time to cut the old adapter off (came from a different car) and solder/heat shrink the new one to the radio's wires and went to drop it into the car. Taking out the old stuff was a breeze and I figured the install would be the same. I was fucking wrong! Son of a bish harness adapter I got from the webs was wrong.
There are three plugs on the back of the stock unit (well 4 if you count the data wire for the wheel controls). The only adapter kits I can find have two plugs. Does anyone know what the deal is? I looked around some 3kgt forums and most people are a bit dim when it comes to this.
I have done countless installs like this but I am stumped! Any help would be awesome!