looking for new 6.5 components for a 4-door sedan. only thing i've owned are mb quarts (cheap $250 set lasted 1 year). some of you say to just screw the back speakers and get better speakers on the front (not a bad idea) $500 budget. looking for QUALITY sound. powered by an older model of the Clarion DXZ785USB (ill check the exact model when i get home). i dont want to deal with tweeters, crossovers are a pain. suggestions...