how was this drl bypass created?

Hi, I have been researching how to disable my DRL and this person has created their own, http://the12volt.ca/2008-09-10-Lancer-HID-DRL-Bypass-w-9006-Relay-Harness-/180515802509?pt=Motors_Car_Truck_Parts_Accessories&hash=item2a07948d8d#ht_2205wt_1141 I am just wondering how this is wired different than a normal harness. For my car when DRL are on, they send a pulsing current instead of a constant 6v or 12v. This harness eliminates the drl (low beam headlight) until you turn your headlights on in the car. Some how it is wired on the relay to prevent it burning out when getting a pulsing current. I know I could just wire into my parking lights, however they come on when you unlock the car, which would mean my HID would come on and then off, which is not good. Wondering if any experts out there can explain, the builder says he builds his own circuit. I assume there must be something I could do to make my own. Thanks.

Think I figured it out. They use a MOSFET with resistors, diode and capacitor, which is all placed between the power switch 86 and the output 87. Thanks.