2006 Chevy Crew just purchased and trying to find the issue. The 15amp fuse in the info slot underhood was blown when I purchased it yesterday. I tried twice to place a new fuse in the block and they instantly blew. So no OnStar and the RSE Dvd player are non-functional... Any help would be greatly appreciated. Thanks in advance.

 

okay so I unplugged the monochromatic/onstar mirror and replaced the 15 amp fuse to try and narrow it down a bit, didnt blow, but still no dvd power, removing from headliner in a moment to try and supply power to unit to see if will power up....any suggestions