Blown Radio Fuse

I was installing a new head unit into my girlfriend's 2000 accent. Using the wire harness diagram from Hyundia, wired up the new deck. The fuse on the head unit and car blew immediately. I question the reliablility of the wire harness diagram that the Hyundia service site provides. Has anyone else had this problem? and if so, how did you get around it?

i trust the hma wiring i use it everyday at work lol
the only think that comes to mind is the color code for the diagram is weird L/B = blue with black stripe not light blue . so the power wire that comes from the car is blue with a black stripe and if you have an aftermarket radio it should connect this to the red wire with the fuse in it . hope this helps .