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      12-26-2013, 07:36 PM   #2
Major General

Drives: 325xi 06 wagon MT
Join Date: Jan 2010
Location: Santa Cruz, Ca

iTrader: (0)

You need to find out for sure what you got.

You need to find out for sure what you got.
L7 or Hi Fi if you have a car 09 or older.

Find a free vin checker site and print out your options.
look at the option number for the sound system.
677 = l7= Top Hi Fi , 676=Hi Fi
These systems can be in a Nav/idrive or in the Pro Radio versions
they are separate amp and speaker systems.
Read the following

BMW stereo types

If you have logic 7 sound and you want to change the Head Unit
then the amplifier must go to. Why because there is and optical
connection between the head unit and amp and nobody makes
a aftermarket head unit that has the same type of optical output.

Last edited by ctuna; 12-26-2013 at 07:47 PM..