you have an ir system???? I forget, are you trying to retrofit it to get switchblade remotes, or what is your thinking behind trying to fit this terrible outdated system to a car that is set up for the newer rf one?
should be the alpine RF system.
I had several ofthe pins for the 10 pin (9 wires) fugured out, but 4 of them are not.
so far 5 are definative, the 2 for the clown nose led, and the 3 wires you already have.