So how is the PAC-SWI-x different from a PAC SWI-JACK. I installed the SWI-JACK in my 06 GP and never had any issues at all. I believe the SWI-X is an adapter that has its own LED transmitter that is mounted somewhere in the vehicle that can be seen by the HU and then your steering wheel controls act as an IR remote. So with that being said the HU you install has to be wireless remote controllable. Am I correct in this scenario? Sorry to hijack the thread OP.