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giganto

Stackable Relays

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I've been fiddling around for a while trying to put fog lights on my MTX Mystique.  I found the "foglight relay" wiring harness that plugs right in to the pre-wired harness for the factory fog lights.  I found another from a Cougar that I hope to put in the ATX Mystique one day, then I noticed the slots and tabs lining up and realized these ISO Micro relay sockets are stackable!

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As soon as it stops raining, I'm going to stack a spare brown (normally open) relay with the normally closed blue fog light relay and make the headlights go off when the key is off.  I accidentally left the lights on during my lunch break last week, and I left lights on overnight twice before in the last twenty years.  I guess my first car shouldn't have been a Subaru, which does this out of the factory.  I'm using opposite-matched male and female blade connectors on the harness to interrupt the orange wire with a black [O/BK] stripe on circuit 29 headed into the headlamp switch.  I have already modified the switch to both light up and activate the fog light relay.  If something goes wrong with the relay, the matched connectors on the O/BK wire will let them return to normal and by-pass the relay.

 

There are plenty of key-on power wires available around the interior fuse box where the fog light relay mounts.

Edited by giganto

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I think I will interrupt the Orange/White circuit 29S instead.  Cutting off the parking lights with the key off kinda defeats the purpose of parking lights, not that I've ever seen them used in the USA.  Has anyone ever used parking lights for their intended purpose, in narrow dark alleys with parallel parking?

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Well yes, been driving for some 45+ years and this is what I understood there intended us was.

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