Does anyone know how to keep your fog lights on with your high beams for a 2001 ram 2500 diesel with the single fog light rely?

Ive done a bunch of research but cant find anything on it

 

Download the service manual for your truck from here. Wiring diagrams are in section 8W. I believe that switching to high beams interrupts the ground for the fog relay, so, just need to change that, and you should be good.