Mercedes Stereo Wiring Info & ISO

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Mercedes Stereo Wiring Info & ISO; Colours to Function Chart
Topic Started: Sun May 31, 2009 4:10 pm (344 Views)
Richy190E	Sun May 31, 2009 4:10 pm Post #1
Sales Rep Posts: 1,822 Group: Members Member #1,387 Joined: June 9, 2007	Using this info will hopefully allow you to repair any previous bodges to your stereo wiring harness 1984-93 Mercedes 190 Series Stereo Wiring : Power & Ground Constant 12V+ - Red Switched 12V+ - Black/Yellow Ground - Brown Illumination - Gray/Blue Dimmer n/a Antenna Trigger - Blue Front Speakers 4" Dash: Left Front (+) - White Left Front (-) - Black Right Front (+) - White Right Front (-) - Black Rear Speakers 6 1/2" Rear Hatrack: Left Rear (+) - White Left Rear (-) - Black Right Rear (+) - White Right Rear (-) - Black ISO Colour Configuration Connections for Block A - Power 1) N/A 2) N/A 3) N/A 4) Ignition +12v = Yellow 5) +12v output - Blue 6) Illumination - Orange 7) Battery + = Red 8) Ground - Black Connections for Block B - Speakers 1) Right Rear + = Purple 2) Right Rear - = Purple/Blk 3) Right Front + = Grey 4) Right Front - = Grey/Blk 5) Left Front + = White 6) Left Front - = White/Blk 7) Left Rear + = Green 8) Left Rear - =Green / Black Remember the ISO diagram above is drawn from the rear of the plug. Credit for the diagram above goes to http://www.nexxia.co.uk - supplier of ICE equipment and supplies. I hope this is of use to somebody. Richy. Edited by Richy190E, Sun May 31, 2009 4:12 pm.



chrismatheou	Sun May 31, 2009 4:21 pm Post #2
Enthusiast Posts: 1,457 Group: Members Member #789 Joined: January 4, 2007	Nice one Richy, I'm sure loads of people will find this useful.



Richy190E	Sun May 31, 2009 4:27 pm Post #3
Sales Rep Posts: 1,822 Group: Members Member #1,387 Joined: June 9, 2007	What are boring sunday afternoons for eh?



nullogik	Thu Jun 4, 2009 7:20 am Post #4
190LE Owner Posts: 627 Group: Members Member #2,274 Joined: February 14, 2008	Could someone make this post a sticky, I think its quite handy to have.



Salar	Thu Jun 4, 2009 7:51 am Post #5
Salar Turk Posts: 336 Group: Members Member #2,770 Joined: June 12, 2008	Wonderful job absolutely.



jeremy	Thu Jun 4, 2009 7:59 am Post #6
Member Posts: 6,561 Group: Members Member #2,018 Joined: December 9, 2007	Top posting Richy. But you really must get out more! Jeremy



Richy190E	Sun Jun 7, 2009 11:40 pm Post #7
Sales Rep Posts: 1,822 Group: Members Member #1,387 Joined: June 9, 2007	I agree mate Glad a few found it useful



kentronix	Sun Jun 7, 2009 11:47 pm Post #8
Admin Posts: 16,341 Group: Admin Member #147 Joined: January 20, 2006	pinned, excellent info mate



stwat	Mon Jun 8, 2009 12:10 am Post #9
Moderator Posts: 12,359 Group: Moderator Member #28 Joined: November 11, 2005	Just a quick note. The dimmer wire, does actually connect up and dims the stereo illumination in my car. I just wish i could remember exactly which wire it connects to on the head unit But here's what Sportline stu posted in my help thread a while ago about the colour of the wire. Quote: stereo 'illumination' is ORANGE connects to NOTHING (newer cars allow the stereo to dim when you dim the dash lights) I found that this orange wire, actually did indeed connect to the dimmer system. Now i think of it, the orange wire from the head unit connected to the blue wire from the cars wiring, but please dont take that as read and il pull my head unit out in the next few days to confirm this.



Matt	Mon Jun 8, 2009 12:47 am Post #10
Administrator - Hawk Eye Posts: 14,126 Group: Admin Member #20 Joined: November 8, 2005	stwat Mon Jun 8, 2009 12:10 am il pull my head unit out in the next few days to confirm this. That would be good to know Stu. I know that some units can be wired so that when the head lights are turned on the headunit dims down.



aemt	Mon Jun 8, 2009 11:53 am Post #11
Member Posts: 2,898 Group: Members Member #3,171 Joined: September 1, 2008	Great work Richy. This will save time and heartache for a lot of us.



BenzBeard	Sun Jun 21, 2009 8:12 am Post #12
Newbie Posts: 25 Group: Members Member #4,281 Joined: June 14, 2009	hey, I'm a recent addition to the forum, but i wanted to say thank you for saving me �102 with this thread!! And so the tale ensues: When i bought my 190e just over a week ago, the stereo that was in the car looked like it was out of a modern-ish vauxhall, and wasn't plugged into anything, it was more me a hole filler. So after giving the car a good clean, and once over, i decided to try and fit my old radio to the merc. Once i'd got the fake radio out, i saw my suspicions were correct. Wires had been cut and there was no plug in sight. So i went down to my local discount bits and pieces store. They came out and had a look at the car, said i need a few things, 1. Plug with a whole bunch of cut wires. �9.99 2. A cage, to help the stereo fit. �12 3. A piece of hardened rubber to go round the radio. �20 (order only) I was quite suprised, the cd player only cost �99 when brand new 4 years ago, and it was going to cost �42 just to put it in a new car! As you can imagine i was a little dazed, as i staggered to the counter wallet in hand. As we got there he said. "To be perfectly honest 'mate' you can do a car quite a bit of damage if you don't know what your doing with the wiring of a car..." he goes in for the kill. " i'd recommend you booking the car in with us, i can have the car to you by this afternoon!" How much, i ask timidly. "only �60!" like he's doing me a favour! Now that wakes me up, my brain kicks into gear. I think i'll just take the wires thanks, I say. A scrap yard for the bits of radio i was missing, and 20 mins using this guide later and it worked out perfectly. I just don't understand how they can justify charging that much! Any how, if anyone needs pictures of the wires in person, and some of my musing, i'll post them! Thanks again!



Richy190E	Sun Jun 21, 2009 12:00 pm Post #13
Sales Rep Posts: 1,822 Group: Members Member #1,387 Joined: June 9, 2007	Glad someone got use out of it



Stempies	Sun Jun 21, 2009 11:16 pm Post #14
Hot Lips Posts: 3,305 Group: Members Member #2,380 Joined: March 6, 2008	Just found these on ebay!! Mercedes 190 E ISO Stereo Harness Adaptor Lead PC2-11-4



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