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belgianchap



Member Since: 01 Mar 2025
Location: East-Flanders
Posts: 17
Belgium 2008 Defender 90 Puma 2.4 SVX Station Wagon Santorini Black
Question regarding how to install a proper secondary fusebox
Hi all,

So I have a few things like the new radio unit, reverse camera, lights,.. that run off of engine-on power.

For this, I have done maybe not so clean things? I have used fuse piggybacks from the existing fusebox to tap into for example the cigarette lighter and some cables I have clipped piggypack clips into them so they split into two cables for powering stuff. Also there might be a few wago clips in there from the old owner that I don't really trust.

I am thinking I should reverse this and put in one of those black sea fuse boxes for accesoires so everything is properly hooked up. Hooking new stuff up to the battery itself is kinda easy.. but I have no idea how I can run this fuse box off of engine-on power only.

Any insights?
Post #1068009 18th May 2025 9:23am
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Mo Murphy



Member Since: 01 Jun 2008
Location: Letchworth Garden City, Herts
Posts: 2338
United Kingdom 1984 Defender 90 BMW M57 3.0 Diesel HT Auto Pennine Grey
You'll need 1 ignition switched live to trigger a relay which will then provide ignition switched power to your fuse box straight from the battery 👍
Mo The Land Rover 90 - Many are called, few are chosen.

50 Shades of Pennine Grey
Post #1068014 18th May 2025 11:27am
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macfrank



Member Since: 05 Nov 2015
Location: somewhere in the north
Posts: 1116
Germany 2015 Defender 110 Puma 2.2 SW Keswick Green
And for that relay-control wire there's nothing wrong with a (proper) fuse piggy back.
Nowadays I even prefer Wagos over crimps sometimes ("indoor" environment), provided it´s an original Wago 221. They're proven to be vibration proof.
Post #1068018 18th May 2025 1:49pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20820
United Kingdom 
Bluesea Systems fuse boxes are good, as are Durite HD Relays.

There are many possibilities with what you can do, Ti suit what you want to fit.

Personally I’d look at a BS 12 way ATO fuse version with negative buss.

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Post #1068024 18th May 2025 2:41pm
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