Stripped my E91 back to reveal factorty stereo wiring (or not?!)

cfoster · 03-20-2014, 07:46 AM

Well i've taken my E91 apart today to find out what is going where and what head unit I have and it 'looks' like someone in the past may have already relocated the standard stereo to the boot already. I have found 4 wires going to a small plug in the boot, i've traced the wires and they splice into the HU wiring. This is what I have.....

Back of factory professional head unit:

I 'think' the Amp should be here but it isn't, just a fibreoptic plug plugging into nothing

4 wires from rear connect to these: thick Blue/White, 2x thick Blue/Brown and a thick Blue/Black.

At the front there are 3 other bullet connectors spliced into the loom but not connected to anything, I have checked and they are not ground or earth with or without the ignition on, any ideas on this one?!!

The 3 bullets splice into the yellow ones in this pic....

Can anyone point me in the right direction?! I'd like to know if the wires in the boot are what i need to connect the factory stereo to!

mathematics · 03-20-2014, 10:51 AM

most connection, power, ground, and CAN high and low is all you need to re-locate for factory service reasons. i'm not sure which wires are the can wires. i want to say it's the ones connected to the bullets that aren't connected to anything, but i am not certain.

cfoster · 03-20-2014, 11:05 AM

Ive had some further time to have a play and it seems that the wires going to the back are spliced into the front speaker wires for some reason, not too sure why! I will use these wires though to run the 4 (plus add one more) to the rear. The High, Low, +12v plus the two additional ones for PDC speaker.

mathematics · 03-20-2014, 11:20 AM

good idea

03-20-2014, 07:46 AM	#1
cfoster Private 5 Rep 98 Posts Drives: E93 335i Vert Join Date: Apr 2012 Location: Essex, UK iTrader: (0)	Stripped my E91 back to reveal factorty stereo wiring (or not?!) Well i've taken my E91 apart today to find out what is going where and what head unit I have and it 'looks' like someone in the past may have already relocated the standard stereo to the boot already. I have found 4 wires going to a small plug in the boot, i've traced the wires and they splice into the HU wiring. This is what I have..... Back of factory professional head unit: I 'think' the Amp should be here but it isn't, just a fibreoptic plug plugging into nothing 4 wires from rear connect to these: thick Blue/White, 2x thick Blue/Brown and a thick Blue/Black. At the front there are 3 other bullet connectors spliced into the loom but not connected to anything, I have checked and they are not ground or earth with or without the ignition on, any ideas on this one?!! The 3 bullets splice into the yellow ones in this pic.... Can anyone point me in the right direction?! I'd like to know if the wires in the boot are what i need to connect the factory stereo to!
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03-20-2014, 10:51 AM	#2
mathematics Captain 69 Rep 994 Posts Drives: 08 328i e93 alpine white Join Date: May 2009 Location: Queens, NY iTrader: (0)	most connection, power, ground, and CAN high and low is all you need to re-locate for factory service reasons. i'm not sure which wires are the can wires. i want to say it's the ones connected to the bullets that aren't connected to anything, but i am not certain. __________________ iPhone 6 Plus (iTunes library/iTunes radio/Waze, etc) to Airport Express via AirPlay. Toslink out of Airport Express to Helix P-Six DSP. PHD AF 1.C tweeters, PHD FB 4.1 midranges. Jehnert Door Cards and mid-bass'.
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03-20-2014, 11:05 AM	#3
cfoster Private 5 Rep 98 Posts Drives: E93 335i Vert Join Date: Apr 2012 Location: Essex, UK iTrader: (0)	Ive had some further time to have a play and it seems that the wires going to the back are spliced into the front speaker wires for some reason, not too sure why! I will use these wires though to run the 4 (plus add one more) to the rear. The High, Low, +12v plus the two additional ones for PDC speaker.
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03-20-2014, 11:20 AM	#4
mathematics Captain 69 Rep 994 Posts Drives: 08 328i e93 alpine white Join Date: May 2009 Location: Queens, NY iTrader: (0)	good idea __________________ iPhone 6 Plus (iTunes library/iTunes radio/Waze, etc) to Airport Express via AirPlay. Toslink out of Airport Express to Helix P-Six DSP. PHD AF 1.C tweeters, PHD FB 4.1 midranges. Jehnert Door Cards and mid-bass'.
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