Thank you Craig
.
I interpret this differently:
Aerpro "APP9" ISO Harnesses convert your aftermarket headunits plug to universal ISO connectors and includes the correct patch lead compatible with steering wheel control harnesses. APP9 Harnesses are compatible with all Aerpro Vehicle Specific Installation Kits, "CH" vehicle specific Aerpro steering wheel control harnesses and infodapters.
The keyword there is compatible I think. So by the looks of it, it connects the primary harness but I still need the steering wheel control harness no?
Can anyone confirm or add onto what's been said?
Thank you ^.^.