That's how it works. But you need to make sure you connect to the "trigger" on the DRLs so that it works. I don't know which one that is, but someone asks the same question in that thread, so it might be answered there. (I didn't read the whole thread)
Also, I don't know the street laws off the top of my head, but I would make sure that it is legal to have 4 lights on for lows in your state. The DRLs may not be bright, but a cop may not care if it's illegal. Just my $0.02