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      11-18-2011, 01:24 PM   #4
ctuna
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Drives: 325xi 06 wagon MT
Join Date: Jan 2010
Location: Santa Cruz, Ca

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yes there are 6 channels from the amp

There are three basic systems
1) the stereo or base if you read the history only a few unlucky people in the US got this one in the 2010 early 2011 year. but its standard world wide and you pay for the other 2 system in other country's even Canada
2)The Hi Fi 6 amped channels and 10 speakers
analog 5 volt differential from the HU to the amp 4 channels
3)The L7 or top Hi Fi 9 channels 13 speakers I think check
the pdf surround sound and the bad, a fiberoptic proprietary
connection between the HU and amp.

The Hi Fi is the easiest to modify as a result.

If you read the history in those links I sent in the previous response it describes everything in detail.

In the front for Hi Fi, two channels go to the doors and two to the floors.

http://www.e90post.com/forums/attach...1&d=1209780865

If you have the right Technic harness it will have 6 channels
out 4 in . It should be a real short one as there is already wiring to the the trunk and most people put there amp in the OEM location.

Last edited by ctuna; 11-18-2011 at 02:09 PM.
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