on the e36, DRLs are activated by a relay. if you don't have them, then the car isn't equipped with the propper relay, so you would need to go to the dealer and buy one. I think that the e46 and newer cars are different, and that info is actually contained in the key. What car do you drive? I'll move this to that forum so the people who drive it my know better.
<span style='color:gray'><span style='font-family:Courier'>1995 e36 3 Series RIP
1999 e46 3 Series BURN IN HELL
2000 MR-S Roadster= Current</span></span>