welles

I'm looking at a used Boxster S; specifically, this one:

Used Boxster S in Houston

Have not been to see it yet (I'm in Dallas), but the dealer states that their techs found the following:

AFTERMARKET HEAD UNIT, AFTERMARKET AMP, HEATED FRONT SEATS INOP

BOTH SIDES, BRAKE VIBRATION WHILE STOPPING

The brake issue is likely warped rotors, but the heated seats failure concerns me, as electrical issues are often difficult to track down, especially in modern electrical/electronic systems. Any thoughts on possible causes/things to examine? A search of the forum didn't turn up anything useful.

Thanks.