I have a 2005 Silverado with factory fog lights. Does anyone know what has to be modified to make these lights stay on when the high beams are switched on?

Thanks Russ

 

the only was is to cut the wires and run a relay off the high beams i doing the same thing but the fog are run through the bcm

 

Painless Wiring sells a relay that takes about 10mins to install that would leave all 4 lights on.. You can get it through JEGS for your year of truck the part number would be 764-30822 sells for about $50.00. I believe their is no cutting or splicing of wires

 

but being able to have your high and lows on let u also have the fogs on the bcm controls the fogs