Hello All,

I have a Jaguar XJ8 late 2001 with the standard audio system,I also have the full premium audio system from a 1998 Daimler (including head unit and all wires), I looked at Red October's guide on how to fit the premium system and it said this at the end:
So according to this I have the Alpine system in my car and the premium audio system I have got is a harmon/kardon, the question is, how much of the audio system do I have to replace in order to convert the Alpine system to a harmon/kardon, if it is even possiable, do the two systems have different wiring/plugs or will it be as simple as swapping the alpine head unit for a harmon one?