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meant Pioneer AVIC-Z140BH as the head unit...
Hi. My Bose amp is bad on my '06 Cayenne S w/ navigation, so I'm going to go ahead and upgrade the head unit to a Pioneer AVIC-1040 and go to an aftermarket amp. I searched the forums, but couldn't find this posted (though I'm guessing it has before). Any recommendations for an amp and how many channels (5?)? What's the best way to group the factory speakers into the amp channels? What's the best way to retain the steering wheel controls?thanks in advance,Kevin