2000 Mustang cd player wiring

Looking for the wiring diagram for the 2000 mustang seperate cd player.

I am adding a pioneer cd rb20 unit to my pioneer 9200r head unit.

I am assuming there is a power wire I can take from the cd hookup to power the rb20.

Dont have a diagram but, you can find it with a cheap multimeter. Can't you power the rb 20 from the aftermarket pioneer head unit? Maybe I just don't understand what you're trying to do?  I believe the stock head units power wire is BLACK/ pink.  Again if you already have an aftermarket head unit in the car then you know this already. Let me know