Hello Everyone
I have a 1996 Delco CD player that I would like to put in my '89
truck.
Wiring the power and speakers are not what I really need help with.
What I would like to do is wire up the SCV control. I don't know what
pin or pins to use.
I did get a harness for the radio but it does not come with the 4th
plug. I just want to know what pins I need to use.

Thank you very much for your help... Happy 4th
Jeff