i've purchased some new grille inserts that have fog lights and everything included to run the wires back to a switch (also included) in the drivers compartment. this switch will be separate from the original headlight one because i didn't want to replace it.
my main question is, where would be a good spot to drill the new hole for the wire to run through the firewall. i'm also assuming there's already some wires comming through and id probably be able to push it through that existing hole which i would prefer. car is a 2004 jetta gl. havnt been able to disassemble the car to look myself because its freezing balls outside.