>I will make a note about the relays (not that I understand it well now, but I hope I will).

Ok, well at the control stalk connector you feed in (for a 1993) yellow which is from the headlamp switch. The control stalk outputs yellow (low beam) or white (high) which head towards the fuse box. Now with DRL the output yellow line is actually hot because there is a line from the DRL relay to the fuse box for low beam, so the output yellow actually has 12V.

The DRL relay is controlled by a line from the dash lamps, so if you turn the headlamps on, then the DRL no longer feeds the yellow, however stalk then directs power from the head lamp switch either to the yellow output or white output.

So the issue is if you bridge the input yellow to the output yellow at the stalk connecter this then can provide power to both the yellow and white output which can overload the DRL relay. Thus the bridge must be a relay that only provides power across the bridge (input yellow to output yellow) when the headlamp switch is turned on.