Bmw e90 328 speaker upgrade

kingbmw5050 · 02-13-2020, 04:34 PM

I have a 2011 328i with the hifi system

I just purchased a BMW individual audio system with the amp from a 335 e90. Includes all speakers and subwoofers plus the amplifier.

Will this upgrade work if I have the wiring harness

ctuna · 02-15-2020, 05:45 PM

If you can retrofit the entire harness and reprogram the head
unit for Logic 7 fiber optic output, or whatever the IA audio
option is . You need more holes for the
speakers in the rear though.
You would just have to add the amp to the Most Bus Loop.
You will need the Harness from a Logic 7 or IA audio system though
mostly because there are extra speaker's and the amp connector is totally
different. You would probably also need a power kit for the amp power.

02-13-2020, 04:34 PM	#1
kingbmw5050 Private 8 Rep 78 Posts Drives: 2011 328i Xdrive Join Date: Oct 2017 Location: Toronto iTrader: (0)	Bmw e90 328 speaker upgrade I have a 2011 328i with the hifi system I just purchased a BMW individual audio system with the amp from a 335 e90. Includes all speakers and subwoofers plus the amplifier. Will this upgrade work if I have the wiring harness
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02-15-2020, 05:45 PM	#2
ctuna Lieutenant General 1911 Rep 13,101 Posts Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca iTrader: (0)	If you can retrofit the entire harness and reprogram the head unit for Logic 7 fiber optic output, or whatever the IA audio option is . You need more holes for the speakers in the rear though. You would just have to add the amp to the Most Bus Loop. You will need the Harness from a Logic 7 or IA audio system though mostly because there are extra speaker's and the amp connector is totally different. You would probably also need a power kit for the amp power. Last edited by ctuna; 02-15-2020 at 05:51 PM..
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