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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > M Series > E46 M3 (2001-2006)

E46 M3 (2001-2006)

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  #1  
Old 12-29-2011, 09:21 AM
M3 rebel M3 rebel is offline
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Location: San Jose, CA
 
Join Date: Dec 2011
Posts: 3
Mein Auto: 2004 M3
Uograding sound system

Hello, My M3 has Harman Kardon sound system installed. I'm looking to install an amplifier but I'm told original 3 ohm speakers may not properly work with an aftermarket amplifier. Has anyone done this process?
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  #2  
Old 04-03-2012, 10:10 PM
phatjoe phatjoe is offline
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Location: New England
 
Join Date: Mar 2012
Posts: 15
Mein Auto: 323ci
I just completed a total replacement of the audio system in my e46 323ci. The process is fairly straight forward if you bypass the factory amp in the trunk; swap out the door and rear shelf woofers with 4ohm two/three way speakers (6.5"), power those new speakers with a new aftermarket head unit and your done. You can keep all the old wiring too, just don't use the factory amp and head unit any more and you're good.What you loose in aesthetics you gain in pure functionality providing you aren't looking for audiophile quality sound or a stock look in the cockpit.
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Old 05-15-2012, 09:35 PM
illestminimike illestminimike is offline
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Location: West Covina CA
 
Join Date: Jan 2012
Posts: 39
Mein Auto: 2010 328i Sedan
I just replaced my stock head unit and kept all the original harmon kardon speakers. Even the stock amp. Made a big difference. Oh and I added a 10 inch kicker with a 800watt amp. It bumps.
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3 ohm speakers, 4 ohm speakers, aftermarket apmplifier, harman kardon


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