Firstly I'm here for some help regarding a double din unit I purchased from ebay. Its a standard fitment on impreza's, well was. Its a Kenwood RB320 double din from a 2004 vehicle.
I know many of you are replacing this unit and are probably thinking why the hell would you want to fit one, well I think it will suit my interior and I really dont want a modern touch screen in my Coupe.
My question is what are the sockets on the rear of the unit for, the white connector block is obvious but what about the round 12/13 pin black socket?
Cd changer?
Aux?
Remote?
Any help welcome
Sorry for joining just to pick your brains but been searching the net for over an hour and so far come up blank

Thanks

 

It is a CD changer socket

 

Yeah I found it on another thread (eventually)
Thanks