How do you access the factory amp?

Daas · 09-02-2007, 01:31 PM

I have L7 and I am planning on adding a 12" JL W3 and an Alpine Amp (from a previous car). I have an amp kit and a hi-low converter. I have never attempted anything like this before, and the DIY seems easy, but how do get to the factory amp? Do I need to remove the carpet padding stuff around the battery area, or is it located on the rear deck? Thanks guys.

Technic · 09-02-2007, 01:42 PM

Quote:

Originally Posted by Saad

I have L7 and I am planning on adding a 12" JL W3 and an Alpine Amp (from a car). I have an amp kit and a hi-low converter. I have never attempted anything like this before, but the DIY seems easy, but how do get to the factory amp? Do I need to remove the carpet padding stuff around the battery area, or is it located on the rear deck? Thanks guys.

It should be easier to tap any of the rear or sub speakers inputs; anyway, that's what you will be doing if you get to the amp, tap its outputs.

etik · 09-02-2007, 01:50 PM

Go to the trunk, it's located like the battery but on the left side.

Check my previous post for wiring

http://www.e90post.com/forums/showthread.php?t=52193

Daas · 09-02-2007, 04:01 PM

Quote:

Originally Posted by etik

Go to the trunk, it's located like the battery but on the left side.

Check my previous post for wiring

http://www.e90post.com/forums/showthread.php?t=52193

Thanks. Found the amp. Time to start the project...

etik · 09-02-2007, 04:07 PM

Keep us posted with your progress

Daas · 09-02-2007, 06:35 PM

I am using the following DIY http://www.e90post.com/forums/showthread.php?t=64582

I found it easier to access the wires near the rear left speaker, since it is difficult to stick my fingers near the amp. I untaped the stack of wires, and found the wires for the subs. According to the DIY, I also found a black wire that I was going to use for remote. Just for kicks, I decided to look for that black wire on the amp, but I don't see it there. Where is that black wire coming from?

Daas · 09-02-2007, 06:54 PM

Here is the pic of the black wire I found (see the red arrow), but I don't see it coming out of the amp. Is that the right one? Sorry for the cell phone quality pic.

etik · 09-03-2007, 04:24 AM

Not sure about that black cable, I do not have logic7 so ???
I used the power from the back cigarette lighter to trigger the amp.

see http://www.e90post.com/forums/showthread.php?t=48617

Daas · 09-03-2007, 09:02 PM

Ended up running the remote all the way to the front cigarette lighter. All done and very loud! Thanks for your help.

09-02-2007, 01:31 PM	#1
Daas Second Lieutenant 55 Rep 268 Posts Drives: A British car Join Date: Dec 2006 Location: USA iTrader: (0)	How do you access the factory amp? I have L7 and I am planning on adding a 12" JL W3 and an Alpine Amp (from a previous car). I have an amp kit and a hi-low converter. I have never attempted anything like this before, and the DIY seems easy, but how do get to the factory amp? Do I need to remove the carpet padding stuff around the battery area, or is it located on the rear deck? Thanks guys. __________________ Previous 2018 M3, 2015 F36 428i GC; 2007 E92 335i; 2002 E46 325i Last edited by Daas; 09-02-2007 at 03:49 PM..
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09-02-2007, 01:50 PM	#3
etik Private First Class 20 Rep 136 Posts Drives: BMW 320D Join Date: Dec 2006 Location: Belgium iTrader: (0)	Go to the trunk, it's located like the battery but on the left side. Check my previous post for wiring http://www.e90post.com/forums/showthread.php?t=52193
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09-02-2007, 04:07 PM	#5
etik Private First Class 20 Rep 136 Posts Drives: BMW 320D Join Date: Dec 2006 Location: Belgium iTrader: (0)	Keep us posted with your progress
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09-02-2007, 06:35 PM	#6
Daas Second Lieutenant 55 Rep 268 Posts Drives: A British car Join Date: Dec 2006 Location: USA iTrader: (0)	I am using the following DIY http://www.e90post.com/forums/showthread.php?t=64582 I found it easier to access the wires near the rear left speaker, since it is difficult to stick my fingers near the amp. I untaped the stack of wires, and found the wires for the subs. According to the DIY, I also found a black wire that I was going to use for remote. Just for kicks, I decided to look for that black wire on the amp, but I don't see it there. Where is that black wire coming from? __________________ Previous 2018 M3, 2015 F36 428i GC; 2007 E92 335i; 2002 E46 325i
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09-02-2007, 06:54 PM	#7
Daas Second Lieutenant 55 Rep 268 Posts Drives: A British car Join Date: Dec 2006 Location: USA iTrader: (0)	Here is the pic of the black wire I found (see the red arrow), but I don't see it coming out of the amp. Is that the right one? Sorry for the cell phone quality pic. Attached Images __________________ Previous 2018 M3, 2015 F36 428i GC; 2007 E92 335i; 2002 E46 325i
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09-03-2007, 04:24 AM	#8
etik Private First Class 20 Rep 136 Posts Drives: BMW 320D Join Date: Dec 2006 Location: Belgium iTrader: (0)	Not sure about that black cable, I do not have logic7 so ??? I used the power from the back cigarette lighter to trigger the amp. see http://www.e90post.com/forums/showthread.php?t=48617 __________________ 07' Yamaha WRF450 07' BMW e90 320d 03' Yamaha R6 00' BMW e46 320d - RIP
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09-03-2007, 09:02 PM	#9
Daas Second Lieutenant 55 Rep 268 Posts Drives: A British car Join Date: Dec 2006 Location: USA iTrader: (0)	Ended up running the remote all the way to the front cigarette lighter. All done and very loud! Thanks for your help. __________________ Previous 2018 M3, 2015 F36 428i GC; 2007 E92 335i; 2002 E46 325i
	Appreciate 0 Quote