hi guys, only had my car a couple of weeks, how can I tell if my system has a Bose amp or not? Its a 58 plate A6 Avant 3.0 s-line le mans. There is a silver amp (with cooling fins) fitted in the nearside rear light area, but its only got the very basic mmi and single cd player in the golvebox. I want to install the parrot BT 9100 that I took out of my old BMW520 but need to know which of the many different adapter leads to buy ( Bose or non Bose etc).