Hi,

I just installed a new system. Polk 6 x9's in the front with a DIY 10" sub,
4 channel Excleon Kenwood amp and HU.

The imaging is very good with the sub in the back of my truck and the front
speakers.

1. My choice are to add a second pair (already have the speakers) of 6 x 9
speakers to the rear doors and use the free channels on the Kenwood amp.

2. Keep my front speakers and don't install speakers in the rear doors. Then
run the amp in bridge mode for the front speakers. I don't think I need the
power.

3. Run one pair up front and then swap out my Orion Cobalt blue amp for the
sub and let the Kenwood's two free channels take over.

Thanks in advance