2016 UK Fiesta Mk7.5 — ignition-switched fuse in engine bay for RGB headlights?

[u/kzso-]

Hi all, wondering if anyone who’s installed aftermarket DRLs, RGB angel eyes or custom headlights on a UK Mk7.5 Fiesta could help.

I’ve fitted aftermarket headlights to my 2016 Fiesta ST-Line 1.0 EcoBoost (Yes I know not ST but still applies). The main headlights work perfectly but the RGB halos have a separate 12V Lotus Lamp controller with loose power wires.

I’m looking to power the controller using a piggyback fuse adapter in the engine-bay fuse box, ideally from an ignition-switched circuit so it powers off with the car.

I’ve looked through the Ford fuse diagrams and found several unused positions (F18, F20-F22, F30-F31), but can’t establish whether any actually provide ignition-switched power.

I’ve also seen American Fiesta ST owners use F26, although that position has a different function on UK models.

So… I ask
Has anyone successfully used an ignition-switched fuse in the engine-bay fuse box on a UK/European Mk7.5 Fiesta? If so, which fuse number did you use?

I’d prefer not to run wiring through the bulkhead to the passenger fuse box if there’s a suitable option under the bonnet.

Any advice from someone who’s actually done this would be massively appreciated. Cheers!

[u/bleachedupbartender]

i’m based in the US and cannot help you. I recommend you buy a multimeter or a test light