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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Thu, Oct-11-2018, 11:05:30 PM   #1
naav
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Default For speakers, possible to change rear passenger panel?

So I got a set of used BAV sound speakers...
My rear passenger side has 1 tweeter on each side (e.g pic attached, black seats). The bav sound has a tweeter and midbass (pic attached, grey seats).
My question is, could I go to the junk yard and get a set of rear panels with the 2 speaker configuration? Would mine have the mount points for the midbass speaker?
Second, what would I have to do with the wiring? would need a crossover i imagine.
My m3 has the buisness CD unit, eventually will swap it out for sony carplay unit.
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File Type: jpg m3_speaker_2.jpg (267.5 KB, 17 views)
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Old Fri, Oct-12-2018, 11:52:28 PM   #2
JamesSJ1
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Default Re: For speakers, possible to change rear passenger panel?

I was writing a technical post about doing this, and realized you have a different problem entirely. The second picture, with tweeter and mid-bass in the panel, is from a convertible. It has no rear deck speakers, so the rear bass/midbass has to come from the side panels instead. That panel card probably isn't compatible with a coupe either.

If you did figure this out, the answer is no...you couldn't just split off the tweeter line with a cross-over. It's probably already crossed over in the amp, which means it wouldn't drive anything less than around 1500-3000hz. You would need to bring lines down from the rear deck to the mid-bass in the panel cards, and that might tax that channel from the amp. Why not just upgrade the rear deck speakers if you're looking for better sound there? I don't think adding side mid-bass speakers would do much when you already have rear deck speakers.
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Old Sat, Oct-13-2018, 01:52:48 AM   #3
naav
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Default Re: For speakers, possible to change rear passenger panel?

Thanks for the reply James! That makes sense.
So I'll just work on upgrading the 6x9 rear speakers.
Cheers
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Discussing For speakers, possible to change rear passenger panel? in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)