I found a stock "JBL" option 6 disc changer for my Gen 3, Model 2, that originally has a standard single disc set up. Does anyone know where I can get a harness or connectors to install this in place of the stock one? I have taken mine out and 2 of the connector banks look the same, but, of course the other 2 are way different. BTW, it was a 5 minute job to get the old one out after removing all the trim pieces. Thanks, Jim