Upgrading HU with L7 - BMW 3-Series (E90 E92) Forum

Lolitskasey · 11-12-2011, 04:49 AM

Alright, so I know you can\'t upgrade your HU and keep the L7 amp. So if I replace that with a aftermarket amp (which I was going to do anyway) will my HU and speakers still work fine with out errors?

kmarei · 11-12-2011, 08:40 AM

If you replace l7 amp you won't be able to connect after market amp
Head unit it has optical output

Lolitskasey · 11-12-2011, 11:11 AM

I am talking about my aftermarket HU.

ctuna · 11-12-2011, 11:28 AM

But there are side effects to your car from removing the stock head unit.

http://www.e90post.com/forums/showth...ht=aftermarket

http://www.e90post.com/forums/showth...hlight=dynavin

The title of your thread is confusing because it doesn't state aftermarket head unit.

Lolitskasey · 11-12-2011, 12:48 PM

Yes I realize that I will lose chime and my car can not be updated. I plan on relocating my OE HU later on. But will everything still work if I add a aftermarket amp and my aftermarket HU?

ctuna · 11-12-2011, 01:56 PM

Anything attached to the Most Bus won't work.
People do this, did if you read the dynavin links and that link I gave you on changing the head unit it will be pretty much like that.

If you have SOS you will get a permanent SOS error on the dash till you reinstall the OEM head unit according to the mount the radio in the trunk link.

http://www.e90post.com/forums/attach...2&d=1260829447

http://www.e90post.com/forums/attach...2&d=1266451970

study these

Lolitskasey · 11-12-2011, 03:26 PM

you still haven't really answered my question, will it work without relocating the OE HU? What i want to do it replace the L7 amp with a aftermarket amp and just wire my stock speakers into that. Cause i got the aftermarket HU to get power and work just no sound.

ctuna · 11-12-2011, 03:42 PM

And yes your car will run .
Do you have the ability to do any research yourself?
Can you read things and reach conclusions?

Lolitskasey · 11-12-2011, 05:28 PM

Thats all i needed to know, All the those links you sent me and i searched for 3 hours last night and i found nothing to my question. all i was asking was a simple yes or no question.

11-12-2011, 04:49 AM	#1
Lolitskasey Private First Class Drives: 2006 Black 325xi Join Date: Aug 2011 Location: Alaska Posts: 115 iTrader: (0)	Upgrading HU with L7 Alright, so I know you can\'t upgrade your HU and keep the L7 amp. So if I replace that with a aftermarket amp (which I was going to do anyway) will my HU and speakers still work fine with out errors?
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11-12-2011, 08:40 AM	#2
kmarei Major General Drives: 1988 M3 Evo II Join Date: Jul 2008 Location: Reston, VA Posts: 6,071 iTrader: (32)	If you replace l7 amp you won't be able to connect after market amp Head unit it has optical output __________________ "There are two opinions in this world. Mine and the wrong one." -- Jeremy Clarkson

11-12-2011, 11:28 AM	#4
ctuna Colonel Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca Posts: 2,789 iTrader: (0)	And aftermarket HU and amp will work. But there are side effects to your car from removing the stock head unit. http://www.e90post.com/forums/showth...ht=aftermarket http://www.e90post.com/forums/showth...hlight=dynavin The title of your thread is confusing because it doesn't state aftermarket head unit. Last edited by ctuna; 11-12-2011 at 11:48 AM.

11-12-2011, 01:56 PM	#6
ctuna Colonel Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca Posts: 2,789 iTrader: (0)	SOS won't work Anything attached to the Most Bus won't work. People do this, did if you read the dynavin links and that link I gave you on changing the head unit it will be pretty much like that. If you have SOS you will get a permanent SOS error on the dash till you reinstall the OEM head unit according to the mount the radio in the trunk link. http://www.e90post.com/forums/attach...2&d=1260829447 http://www.e90post.com/forums/attach...2&d=1266451970 study these Last edited by ctuna; 11-12-2011 at 02:17 PM.

11-12-2011, 03:42 PM	#8
ctuna Colonel Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca Posts: 2,789 iTrader: (0)	yes it will work as far as putting out sound And yes your car will run . Do you have the ability to do any research yourself? Can you read things and reach conclusions? Last edited by ctuna; 11-13-2011 at 11:50 AM.

11-12-2011, 11:11 AM	#3
Lolitskasey Private First Class Drives: 2006 Black 325xi Join Date: Aug 2011 Location: Alaska Posts: 115 iTrader: (0)	I am talking about my aftermarket HU.

11-12-2011, 12:48 PM	#5
Lolitskasey Private First Class Drives: 2006 Black 325xi Join Date: Aug 2011 Location: Alaska Posts: 115 iTrader: (0)	Yes I realize that I will lose chime and my car can not be updated. I plan on relocating my OE HU later on. But will everything still work if I add a aftermarket amp and my aftermarket HU?

11-12-2011, 03:26 PM	#7
Lolitskasey Private First Class Drives: 2006 Black 325xi Join Date: Aug 2011 Location: Alaska Posts: 115 iTrader: (0)	you still haven't really answered my question, will it work without relocating the OE HU? What i want to do it replace the L7 amp with a aftermarket amp and just wire my stock speakers into that. Cause i got the aftermarket HU to get power and work just no sound.

11-12-2011, 05:28 PM	#9
Lolitskasey Private First Class Drives: 2006 Black 325xi Join Date: Aug 2011 Location: Alaska Posts: 115 iTrader: (0)	Thats all i needed to know, All the those links you sent me and i searched for 3 hours last night and i found nothing to my question. all i was asking was a simple yes or no question.

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