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It seems that I may have a blown door speaker. Took a friend to pick up his car today and he turned the music up a bit and realized that he had to turn the volume knob a lot more then his car just to hear the same loudness only to my surprise that door speaker no longer producing sound. Off to search for a new speaker. I am confuse, like anything else nowdays, a ton of reading and everyone has an opinion on the best way is to just mount a light bulb. It calls for 5.5" but it seems a 6.5 will also fit. Then there's the fooking 4" speaker and I can't seem to buy unless I fork over 400 bucks. I read on about the difficult of getting the tweeter out. Is Porsche the only car company that make these thing do difficult to get in and out. WTF is the odd size tweeters? some say there's a center dash other say they are on both side of the dash. Any of you taken these thing out? I do not have the Boss system and I believe it has the premium sound package. 09 Cayman S. Where to look for concrete info? Been looking at Crutchfield there's so many brands. don't need to pay 600 bucks for a set but 300? Should be good enough?