I went into a store and ordered this http://http://shop.advanceautoparts.com/p/metra-electronics-wire-harness-adapter-into-car-70-6506/22610027-p#fragment-2, so I can hook an aftermarket receiver Kenwood KDC-BT710HD into my 2005 Chrysler Pacifica. In the description, the harness says it will run 4 speakers, but my car has 8 factory speakers. Also I notice that this is will bypass the factory amp. Is there another harness that will hook up to the factory amp and let me use all my speakers? I will be upgrading the amp and all speakers eventually, but not right now. Thank You
