Hi all, i have an a4 cabrio b6. It's retro fitted with an RNS-e. It's non Bose, and I want to wire in 2 amps, and fit sub. the RNS-e is currently powering all my speakers, 2 front, 2 rear and the 3 in dash. I assume the vehicle must have an amp somewhere as the rnse won't power all these alone. anyone know where this non Bose amp is in my cabrio? and would it have a "12v remote" so I can switch my new amps on and off.?? any diagrams of OEM stero setup on a cabrio appreciated.