I can’t help you when I have questions about head units, I go to Crutchfield.com. Enter your year and model and they will tell you the jumper connectors you need for radio upgrades. Those jumpers will be labeled to their purpose.
Or
There are Factory Service Manuals in the General Discussion Section. You can trace them out from there.
Or
There are Factory Service Manuals in the General Discussion Section. You can trace them out from there.