Thanks, for the responses guys.
Teefoff00 I purchased the one suprasport is offering, but I have to believe their is another harness in our Supras. I guess I'm thinking like an F-body guy. There you had an "engine harness" that controlled all the stuff in front of the fire wall and they you had a "chassis/body harness" that controled all the interior stuff in the car like the radio, windows, dome light, speakers and anything else in the interior. I'm just having no luck finding one of these interior harnesses. I figure I could pull and replace, but at the current rate I can work on the car it would take me a year.
Again thanks for your help everyone. Keep the advice coming.