Help with m3 style back lights
 

Hi, i've been given a set of these lights ^ for my 94 318iS but the car their from has a third brake light and my car hasn't.

The problem is that the passenger side brake light and back light doesn't work, but when i swap them round they work, i think it's because i have no third brake light and no check control, (swapping i mean drivers side on the passenger side and vice versa and then they work),
but when i put them back the passenger side doesn't work

is their a way around this, like running a wire from the drivers side along the trim to the passenger side or a way of getting round check control.

Has anyone had this before and how did you get round it.

Thanks in advance

Moved to lighting :type

Can u take a pic of what lights you were given to?

The lights i was given are for the E36 their nearly the same except for the indicator, which is clear instead of orange

I've sorted the problem, I had to make a bridge on the circuit on the back of the light.