Pandora Car Alarm System
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read

Go Back   BMW M3 and BMW M4 Forum > BMW F80 M3 / F82 M4 Technical Topics > Navigation, iDrive, Audio, Video, Bluetooth, Phone, Cameras, Electronics

Post Reply
 
Thread Tools Search this Thread
      08-27-2017, 02:36 PM   #1
cloud8r
Member BMW CCA Los Angeles
cloud8r's Avatar
United_States
32
Rep
470
Posts

Drives: 2022 M8 GC Comp
Join Date: Oct 2008
Location: Trabuco Canyon, CA

iTrader: (0)

Garage List
2018 BMW M4  [0.00]
Technic amp harness wiring diag

So I've been searching for days and surprisingly haven't found what I think is a very simple question. Or perhaps I'm overlooking something obvious.

I purchased the technic harness for my f82 m4 with HK. It comes with the main harness and two pigtails. One pigtail is to use aftermarket amp with your under seat subs. The other pigtail is to connect to a loc. However no matter where I've looked, I'm not understanding where to connect them on the loc as it's got two extra wires, the middle ones in the picture. They're not power as I see no voltage on them. They're not remote since the hk do not out a remote signal from the hk amp. So what are they and where do I connect them on my LC2i loc? Thanks!
Attached Images
  
__________________
Current Rides:
2022 ///M8 GC Comp

Much enjoyed:
2018 ///M4 ZCP || 2014 ///M5 ZCP || 2011.5 ///M3 Sedan || 2007 ///M Coupe || 2008 550i Sport || 2006 ///M3 ZCP || 2008 X3 3.0si || 2006 325i || 2003 Z4 3.0 Roadster || 2003 330ci || 2002 325i
Appreciate 0
      06-26-2021, 06:25 PM   #2
Bradycat77
Private
4
Rep
58
Posts

Drives: M4, Ford Taurus SHO
Join Date: Sep 2019
Location: Canada

iTrader: (0)

Bumping an ancient thread because I have the exact same problem and same simple question. Connector B has 6 wires, however it is only clear where 4 of them go (to the 4 speaker inputs on my Lc2i). Help please![IMG]undefined[/IMG]
Attached Images
  
Appreciate 0
      06-28-2021, 06:36 PM   #3
Encanto
Colonel
Encanto's Avatar
United_States
1161
Rep
2,180
Posts

Drives: 2021 X3 M40i
Join Date: Nov 2015
Location: Ohio

iTrader: (1)

I would guess that the wires not labeled in the diagram are not to be used.
Appreciate 0
      06-28-2021, 10:07 PM   #4
Bradycat77
Private
4
Rep
58
Posts

Drives: M4, Ford Taurus SHO
Join Date: Sep 2019
Location: Canada

iTrader: (0)

Thanks for the reply! That seems to be the case. I contacted Elias at Technic and he said to not use the 2 extra wires. I just find it strange that this custom harness has unused wires for its exact intended application.
Appreciate 0
      07-01-2021, 01:42 PM   #5
Encanto
Colonel
Encanto's Avatar
United_States
1161
Rep
2,180
Posts

Drives: 2021 X3 M40i
Join Date: Nov 2015
Location: Ohio

iTrader: (1)

Quote:
Originally Posted by Bradycat77 View Post
Thanks for the reply! That seems to be the case. I contacted Elias at Technic and he said to not use the 2 extra wires. I just find it strange that this custom harness has unused wires for its exact intended application.
There are 3 different OEM amp 20-pin connectors - one has all 20 wires, one has 18 wires, and the other has 11 wires. Seem to me that this harness is made to accommodate all three types of OEM amp will all 20 wires populated.

Your BMW OEM amp must have an 18-wires connector as 2-wires are not used in the harness.
Appreciate 0
      07-01-2021, 08:55 PM   #6
Bradycat77
Private
4
Rep
58
Posts

Drives: M4, Ford Taurus SHO
Join Date: Sep 2019
Location: Canada

iTrader: (0)

That must be the case I'm thinking
Appreciate 0
      10-28-2021, 05:35 PM   #7
devil84
Captain
United Kingdom
116
Rep
793
Posts

Drives: G30
Join Date: Jul 2015
Location: London

iTrader: (0)

Quote:
Originally Posted by Bradycat77 View Post
Thanks for the reply! That seems to be the case. I contacted Elias at Technic and he said to not use the 2 extra wires. I just find it strange that this custom harness has unused wires for its exact intended application.
Can you confirm the two wires not used are the ones not labelled rather than the middle two that the OP circled in red??
Appreciate 0
      11-03-2021, 03:55 AM   #8
Encanto
Colonel
Encanto's Avatar
United_States
1161
Rep
2,180
Posts

Drives: 2021 X3 M40i
Join Date: Nov 2015
Location: Ohio

iTrader: (1)

Quote:
Originally Posted by devil84 View Post
Can you confirm the two wires not used are the ones not labelled rather than the middle two that the OP circled in red??
The diagram shows that the two wires not used are the black and the red wires.
Appreciate 0
      11-03-2021, 03:38 PM   #9
devil84
Captain
United Kingdom
116
Rep
793
Posts

Drives: G30
Join Date: Jul 2015
Location: London

iTrader: (0)

So the two in green?

These two are not labelled. Not sure why the middle two are circled in red???
Attached Images
 
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 08:33 AM.




f80post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST