Actually I have searched and it is not well documented at all. There is alot written about DRL relays being installed but no documentation, wiring diagrams or explanation of which circuits they were connected to. Also, some people who have added universal DRL relays are living with "Bulb out" lights on their dash. The complexity of wiring a universal DRL relay into a lighting system that has individual fuses for each light is further complicated because the lights are also controlled through the Body Control Module and the Security System module.
This is why I am looking for a OEM Canadian version headlight switch and not a universal relay.