I'm trying to put a new deck in my car, after I took the old deck out I saw the wiring harnesses. They are different from the installation harness I bought and I can't find and wiring diagram that matches it. It has 2 yellow/black wires going in to one spot and 2 other wires a blue/red and a orange/blue both going in to seperate spots. I do have the amp pull switch in my car. Any idea on which is which, and how to hook up the new stereo

 

Did the car already have an aftermarket head unit (deck) in it, or did it have the stock radio?

Also, can you take some pictures?

I am also having some trouble installing an aftermarket head unit. I bought these adapters that plug into the stock wiring, the 2 plugs that go into the back of the stock head unit. The power works on the aftermarket with those adapters, but the speaker configuration is a bit harder on 6 speaker setups because of the stock amp, as I have been told by people on several forums, including this one