Just got a pair of UK STi Head lights to fit in my UK WRX, they came with the extra loom and relays to 'plug and play' on the original loom, only thing is I'm not sure what colour wire goes to what on the extra loom...

any body fitted these or got a pic of the rear of the lights fitted, or even a wiring diagram?

cheers,
Jon.

 

is it the levelling or lighting circuits you're stuck with?

Lighting circuits: bugeye wrx connector is a 3-way block, one is +12V and the other two are negative / earth - the feed is constant 12V and the switches are on the negative side.

As the wrx is a H4 bulb and the STi is H1 dip and HB3 main beam, you need to work out which pair of connections go live in the block when you put dipped lights on and which pair go live when you go to main beam. This then lets you use spade connectors to connect in the STi lights. If you've got plug'n'play stuff, then the connector blocks should be made so they only fit one way... (idiot proof )

Levelling circuit is a bit trickier due to the amount of wiring involved - the principle is simple but the getting it to work is more fun...