I have swapped out the factory stereo with a new Kenwood eXcelon X579. I spent all day on the phone with Crutchfield trying to get this to work. The front speakers work fine, but the rear speakers are barely audible. Crutchfield says I have everything connected correctly, but I think I'm missing something. The car did not have the Bose system in it. I have an OEM-2 converter for the rear speakers, because I was told there was an amp for them. Any help would be greatly appreciated. TIA.
Gus