Hi, I ended up installing 4x6 Kickers(DS46) in the rear of my '09 Aveo 5. Should have taken advice from a previous post cause they sound like crap from stock deck . Sadly the CF adviser recommend them over both Polk and Infinity Reference 4x6. Anyways, for the front doors I am thinking about ordering 6.5 coaxials (Kicker DS60) using 1inch spacer. Hoping will make a bit of difference. Because the Kickers will be 2-way, how do I disconnect the pillar tweeters? Is their a stock crossover somewhere because I have the stock 6-speaker system? May also change stock deck but Sat XM has been always working, even since trial ended LONG time ago. lol I could care less but wife uses it.