headlight problem

[TMASTER]

First of all what lights are going off when you turn the high beams on???

If your talking about the fog lights going off when turn the highbeams on, that is normal for GT's from the factory. There is a way to bypass the circuit, so you can have manual running fog lights with the same switch.

Second of all, if the head lights are going off when you turn the high beams on, that means you need dual element bulbs for the head lights, or your highbeam elements are burnt out, and you need new bulbs.