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      02-20-2013, 01:37 AM   #4
ctuna
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Drives: 325xi 06 wagon MT
Join Date: Jan 2010
Location: Santa Cruz, Ca

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The head unit is the controller for the most bus

The head unit is the controller for the most bus
It has be there and stuff has to be attached for the bus
to be complete.

In the head unit relocation thread they mention completing the
most bus by running an optic extension to it.
I know people with aftermarket head unit without assist installed don't seem to generate this error
when they don't put the radio back in.
Is this an aftermarket or a new OEM.

Last edited by ctuna; 02-20-2013 at 02:35 AM.