Here's the most extensive thread on the DRL mod, I did this myself (with the diode...described later in the thread) on my 05 and it's worked flawlessly for years.:
http://www.elcovaforums.com/forums/s...hlight=DRL+mod
And here's a few other threads that also may be of assistance:
http://www.elcovaforums.com/forums/s...earchid=402764