Man, it's not that hard. As in the previous post it's just an eye-ring over a little plastic post. just adjust it to closed, turn the knob to closed and reattach it. I thought it was kinda funky too when i installed my new deck yesterday but it's super easy. I dunno if this will help you but here's a pic from hma
I'd take pics of mine but it's late and i'm not going to take out my glovie for no one. Plus the x3 is different than my LC2... it'd probably mess you up more. Sorry man, i'm trying to help but you're gonna laff at yourself when you figure it out. I'm by no means a car genius or anything but it's not a complicated thing.