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happierdays



Member Since: 07 Jul 2024
Location: Worcester
Posts: 10

United Kingdom 2015 Defender 110 Puma 2.2 SW Scotia Grey
Help with wiring colours / diagrams
Hi, I'm looking to upgrade my stereo, but unfortunately someone's done it before and cut all the wires from the back of the factory ISO connector, per the picture below. I am looking for a wiring diagram of the plug so I understand what each wire colour does ? Any help gratefully appreciated
Thanks

Click image to enlarge
Post #1043638 23rd Aug 2024 12:58pm
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Race.it



Member Since: 27 Aug 2019
Location: Algeciras
Posts: 807

Spain 2010 Defender 110 Puma 2.4 SW Alaska White
think it depends on year, but does this help

https://www.defender2.net/forum/post285971.html Searching for my first Defender...and started just as Covid hit, so talk about timing.

5 months after starting the search I found it, and here is the details
Post #1043652 23rd Aug 2024 2:18pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20207

United Kingdom 
As race.it mentioned that will be helpful to you.
I would fit two male ISO connectors, this will match all aftermarket head units that you might want to fit.

A multimeter to double check each feed for identity using continuity checks or voltage where appropriate.

One make iso plug will be primary power, the other will be speaker outputs.
You can identify each speaker feed and polarity using continuity checks.
Wire it up matching din iso diagram, you’ll be fine.

You’ll need a basic unisulated crimp tool the plugs and locking pins.
Thumbs Up NEVER SURRENDER! ⛽️🛢️👨‍🔧🧰⚙️ RED, WHITE & BOOST! 🇬🇧
Post #1043661 23rd Aug 2024 3:43pm
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Penfold_6290



Member Since: 22 Sep 2021
Location: Dorset
Posts: 312

United Kingdom 2002 Defender 110 Td5 CSW Epsom Green
You need to get these which are the vehicle side ISO connectors. You can find wiring diagrams online as to how to connect it all up as the radio side is the same across the brands

https://www.ebay.co.uk/itm/142427857851?_n...R46-qPyvZA

Most new head units will come equipped with the female side so they will be plug and play. I also like to use the spare ways in the power block (not the speaker block) to deal with some of the optional services such as reverse light signal if you are fitting a camera. It keep all the connectors from the radio tidy.

Wiring diagram here -

https://www.lrworkshop.com/wiring-diagram/...-subwoofer
Post #1043665 23rd Aug 2024 4:10pm
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happierdays



Member Since: 07 Jul 2024
Location: Worcester
Posts: 10

United Kingdom 2015 Defender 110 Puma 2.2 SW Scotia Grey
Thanks all. Agree the recommendation vs splicing to ISO standard male connectors.

The reason for asking is to be sure I've matched the Defender wires up correctly.

You may be able to see from the photos -- currently the white with orange stripe wire from the loom is connected to the ISO red wire (switched power) and the purple Defender wire to the ISO yellow (permanent power).

In the carcass of the connector there is a solid blue (is that a power line for an antennae?) and a solid red wire (some other form of power?). There are back wires with yellow, or brown, or red or pink stripes. I'm trying to understand these colours on the loom wiring side so I make sure when I connect to the ISO standards I do it right.

Does anyone have a quick summary of each wire purpose or can point me in the direction of a diagram or link that explains ?

Really appreciate the answer so far
Post #1043666 23rd Aug 2024 4:19pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20207

United Kingdom 
ISO head unit side:
https://commons.wikimedia.org/wiki/File:IS...pinout.svg

For the LR side, follow Penfolds last link just above. Thumbs Up

Match the two that’s all you shall need to do. Thumbs Up

With DIN>ISO, when you have your new head unit whichever size it is, all you’ll need to do is fit a universal cage, then plug it straight in as most aftermarket units are ISO.
In fact Defenders between 2007 and 2012 approx are ISO as standard anyway.

LR changed that after 12’ for the 2.2 Puma, presumably to fit their own unit that matches.
You can get an adaptor as well but you may as well just fit ISO.
Again. Those make plugs and the pins kit as posted above is correct and ideal. Thumbs Up NEVER SURRENDER! ⛽️🛢️👨‍🔧🧰⚙️ RED, WHITE & BOOST! 🇬🇧
Post #1043675 23rd Aug 2024 5:28pm
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Penfold_6290



Member Since: 22 Sep 2021
Location: Dorset
Posts: 312

United Kingdom 2002 Defender 110 Td5 CSW Epsom Green
happierdays wrote:
Thanks all. Agree the recommendation vs splicing to ISO standard male connectors.

The reason for asking is to be sure I've matched the Defender wires up correctly.

You may be able to see from the photos -- currently the white with orange stripe wire from the loom is connected to the ISO red wire (switched power) and the purple Defender wire to the ISO yellow (permanent power).

In the carcass of the connector there is a solid blue (is that a power line for an antennae?) and a solid red wire (some other form of power?). There are back wires with yellow, or brown, or red or pink stripes. I'm trying to understand these colours on the loom wiring side so I make sure when I connect to the ISO standards I do it right.

Does anyone have a quick summary of each wire purpose or can point me in the direction of a diagram or link that explains ?

Really appreciate the answer so far




If you’re not familiar with the colour abbreviations on wiring diagrams this will help.



Click image to enlarge



The black wires with coloured stripes are speaker wires, be careful to get the polarity correct. You won’t damage a speaker by wiring it back to front but it will sound dreadful!
Post #1043812 25th Aug 2024 9:27am
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happierdays



Member Since: 07 Jul 2024
Location: Worcester
Posts: 10

United Kingdom 2015 Defender 110 Puma 2.2 SW Scotia Grey
Thanks all

All the advice very helpfully received as was the wiring diagram

Turns out the hacked wires for etc radio all had the polarity reversed, now sorted

A picture of the final job by way of thanks and just in case anyone else the same problem the wires and mapping (this is LHD 110)

Cheers



Click image to enlarge
Post #1043826 25th Aug 2024 1:52pm
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