On UK spec impreza's, is the fog light built into the rear lights?

 

Yes

 

do we have 1 or 2 fog lights on my05 coz i only have 1 working and i realised that when the car only had 500 miles on the clock?

 

how difficult would it be to put the rear fog into an import rear light unit?

 

pretty easy really! i did mine last week! borrowed a single buld holder from the scrappers out of a volvo indicater, found a 21w single filament fog/stop light bulb, removed the rear light, drilled a hole in the blank spare piece, enlarged it using a hole cutter so my bulb holder would just squeeze in, i had a problem with power, it should work on dip/main beam, but when i checked for power at the column if one was on the other went out! so if you put mian on the fog would go out, in the end i just got an ignition feed, i used an illuminated switch as you have to be able to tell its on for M.O.T, so if it was on it would be obvious! then just ran a cable to the o/s rear light, 10 mins soldering and hey presto! i did just but 2 dabs of hot glue on the bulb holder so it didnt fall out, but with some brute force it would pull out to change the bulb!! send us a PM if ya want to know anything else! Forget to say, mines a my95! classic shape!

 

cheers fella I will have a go myself, mine's a 95 as well, pics in the gallery