Hi, guys, particularly those electronically inclined. Bought a Nak 45 from a guy on the 914 list. Need to know what I need to do to put it in place of the "Audi Gamma" in our 95 A6QA. The Sony I bought for the 20v came with a Crutchfield adapter that plugged right in. They offer no such animal for the Nak. Help! TIA, John