Hi guys. I want to install a Pioneer Appradio 4 and be able to use my stock multifunction steering wheel to control it (using Joycon to do so), but I need the following information.

1/ Do you guys know the resistive values of the buttons on the multifunction steering wheel?
2/ I believe Porsche operates on CAN BUS (but I could be wrong). If it is CAN BUS, where does the CAN BUS signal come from? Does it originate from the steering wheel? Or does it occur after the steering wheel?

Thanks a million!

 

anyone?