I've spent all night looking up info about replacing the speakers in my '97 540i with standard stereo, and I'm about to go insane. I've read the write-ups on BMWtips and I've read through every thread on this forum that contains the words "E39" and "speakers", but I still haven't found what I'm looking for, and I've found conflicting information. I hope someone here can help me, because while I'm generally pretty savvy with electronics, I'll be the first to admit I know pretty much nothing about car audio.
I purchased this car about 3 weeks ago, and quickly noticed there's something wrong with one or more of the speakers. It sounds like crap (yes, even worse than E39s normally do -- my dad's got a 528i and it sounds a lot better than mine). I did some very unscientific testing: I stuck my ear next to each speaker and tried to hear a problem. I can't tell about the front tweeters, but I found that the ones in the rear doors were completely shot. All I heard was a hiss with an occasional attempt at sound.
OK, I thought, I'll replace those. When I started looking up info, however, I ran into two problems: 1) I can't find ANYWHERE what size these rear tweeters are. Everyone that's done a write-up on this procedure fails to mention the size of the tweeters. And 2) in one of the articles (here
), the author stated that only DSP-optioned cars have tweeters in the rear doors. WHAT? So now I'm wondering if I actually DO have tweeters back there. I'm thinking the author was wrong, though, because I'm pretty sure I remember my dad's rear tweeters operating, and he doesn't have DSP either.
So, assuming I do have rear tweeters, here's what I'm thinking about doing: buying two sets of MB Quart RSC 213 (like these
), and replacing front and rear midbass and tweeters (I assume the rear deck speakers are the same size as the midbass ones in the front doors??). Any opinions on that plan? I ONLY want to replace speakers, nothing else.
Finally, if you take a look at the MB Quart auction I linked to, what the hell is that clear-ish, reddish box with the connections on it, and what is it used for?
Thank you all for your patience and your help.