I know about the DRL, but on the 08-09 models, the DRL are on the high beams, not the low beams.
So normally, when I put down the handbrake, only the High beam should be on, not both !
I spliced the ballast connector onto the H7 plug in the headlight, so I'm thinking, that I might have inverted the + and - wire ... I'll check on that later.