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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > AUDIO/VIDEO + BLUETOOTH + Electronics/Alarm/Software > OEM Power Connection of L7/EPS/Individual Audio Amp?



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      01-09-2015, 03:44 PM   #1
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OEM Power Connection of L7/EPS/Individual Audio Amp?

Hi,

How is this done from the factory? Is a +12v lead run from a MAK8 connector on the distribution block atop the battery directly to the 2-blade socket on the AMP? If so, where is the -ve pin grounded?

Were earlier cars different? I seem to recall reading somewhere that the amps are in some cases powered via the 20-pin connector instead.

I'm retrofitting a complete Individual Audio (Enhanced Premium) setup.

Thanks,

Tom
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      01-12-2015, 05:25 AM   #2
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Hi Tom

You want to know where the amp is getting his 12V ?
What model year is your car?
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      01-13-2015, 02:10 AM   #3
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Quote:
Originally Posted by Teq View Post
Hi Tom

You want to know where the amp is getting his 12V ?
What model year is your car?
Hi,

I've an E91 to which I'm trying to retrofit Individual Audio. In an OEM installation does it get 12V directly from the fused 'distribution block' on the battery, like this:

(Obviously this is an aftermarket system, but is the topology the same?)

http://www.m3post.com/forums/showthread.php?t=540446

Ground from the left wheel arch somewhere?

Thanks,

Tom
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      01-14-2015, 02:47 PM   #4
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I'll check the wiring when my system is done updating.
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      01-15-2015, 02:14 AM   #5
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Quote:
Originally Posted by Teq View Post
I'll check the wiring when my system is done updating.
Thank you!
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      01-15-2015, 03:52 PM   #6
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Junction box F34 plug X11006 position 4. 2,5 mm2 red/gray.
I also see top-hifi up to 2009_09 junction box plug X11002 position 5 red/gray.

Last edited by Teq; 01-15-2015 at 04:19 PM..
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      01-18-2015, 03:15 PM   #7
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Quote:
Originally Posted by Teq View Post
Junction box F34 plug X11006 position 4. 2,5 mm2 red/gray.
I also see top-hifi up to 2009_09 junction box plug X11002 position 5 red/gray.
Thanks!
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      07-21-2015, 01:15 AM   #8
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Sorry to resurrect this thread but can anyone confirm whether the power comes from the 2 pin blade socket, or in the 20 pin connector (pin 10 12v, pin 20 ground).

I'm doing the same thing at the moment, could the power just not come from the battery with an inline-fuse?
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