Work for Best Buy, get really nice discounts on equipment. I decided to go Polk, and I've thus far picked up two sets of Polk Audio DXi 570 (5x7) speakers, and had them installed. I'm keeping the stock deck (Sync, all that). It's not the high performance audio system from the factory, just the standard one. So I'm looking at a Polk PA 660 4-channel amp to pair along with these speakers. Don't want to mess with a sub, just want better kick than the stock system. I get a big discount on install from our pro auto-tech guys, so I will be having them do it too. If they mess up, they are insured- I'm not, lol

So any advice or comments on this?