I have a sub enclosure and amp from a previous car and was wondering what the difficulty level of integrating it into my CM's stock HK system would be.

I would not do it myself, but I'm asking because I seriously doubt many shops around here have worked on Countrymen.

If it's pretty straight forward, I wouldn't mind taking it to a reputable shop to get it done. Please advise.

 

I have a HK sound system. You will need a line converter, eq if you need it it, amps and of course aftermarket speakers.

 

Its really not any different than working on a regular cooper, same stereo, just 2 more seats.