Rodd, we can answer most of your questions about your stereo for you. The 1st is what model is it and this can be seen by looking at the code card as it it will start with a BE or and A to let you know if you have a becker or an alpine. (not much difference as they are clones). Your radio supports an alpine 6 cd changer with a basic 10 pin sq to 8 pin round adapter. There are no pre-amp outputs as the signal that goes to the stock amp is balanced high level. If you have any questions you can either contact my repair department @
www.lajollaaudiorepair.com or you can call my sales shop@ 800-467-6545 and ask for Donald!
Scott@lajollaaudio