My headlight on driver side won't work, it's not the ballast or the fuse what it on 2003 Volkswagen Passat W8

My w8 has stock hid lights, well I replaced the ballast and it worked for two sec then the fuse blew and so did the new ballast. Now I'm stuck iv spend 500$ on not the problem and now I need to know what to do?! Bc the passenger side lights works but nothing on the driver side dose.

Asked by for the 2003 Volkswagen Passat W8