When the front fog lights are on, and I use the front right turn signal, this happens

[Wret]

I got a similar fault when trying to change all the bulbs to LED. I had to leave some incandescent bulbs in place to get proper function.

By the way, all the wiring connections can be made without removing the lens. You can also replace all the wiring for few bucks if you are handy with a soldering iron.