2009 6-disc Changer pin outs needed

[rmcguire]

I just purchased a 2009 TRD Sport Access Cab with a 6 disc CD changer. I originally thought this would be a JBL system but alas it's not. I got caught up having to rush order a 2009 after my old Tacoma was recalled. I'm trying to install a Pioneer AVIC-F90BT. I already have the Scosche TA02B wire harness for the power and speakers. Now I need the pin outs for the additional 20 pin and 12 pin connectors on the back of the head unit. There's an external aux connector and other functions I need to trace out. Does anyone have the pin outs for this new generation of head unit?