Originally Posted by RiXst3r
Not all cars have those buttons... mine doesn't. Also, it needs to be a signal on the PT-Can, as the PROcede is only on the powertrain canbus (engine and powertrain related modules)... the steering wheel is on the K-Can I beleive.
And this is a good technical reply to the OP's question. I thought that CANbus was straight up everything - not just engine mgmt.