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      01-27-2007, 12:49 PM   #2
First Lieutenant
marcm's Avatar
United Kingdom

Drives: E93 335i LCI
Join Date: Jan 2007
Location: UK

iTrader: (1)

OK its confirmed... standard head unit filters out bass for the rear speakers.

If you are going to tap into the line level speakers use the fronts as they as also connected to the bass speakers under the seat.

The front speakers are the thicker wires, they must make them thick as they supposidly carry more wattage to drive the 4 speakers.

Hope this helps anyone else who is looking to do what I did.