I have an A6 2.8 with bose premium sound package. This past year i had installed a Kenwood EZ500 deck to a JL e1400d amp powering a big box of 2 JL 12W0's. I left the normal bose speakers in however in the instal i am not sure if they had to bypass the amp or something like that. The problem now is that my passenger door speaker has bubbling and makes a lot of fuzz noise. Im assuming i blew out the speaker as i thought i would do eventually. I am looking into replacing all the speakers now plus a 4 channel amp to make the car LOUD. Has anyone swapped out the bose speakers for aftermarket ones? Anyone have any suggestions as to what to swap them with? How difficult will this be? Im willing to spend 400 on speakers, 200 on an amp, and another 100 i guess for install. Im an obnoxious kid and i want this thing as loud and as crisp as possible.