My son has 2009 silverado extended cab with 22000 miles, he left his amp on and the battery went dead, so I took my 2009 silverado and tried to jump it. When I turned the key on the display lit up but once I turned the key all the way over everything went dead. So I replaced the 175 amp under the firewall by the battery and checked all the fuses by the drivers side door, but when i try to jump it, it does nothing no display, no click, nada? What else could be the problem? Is there another fuse somewhere? Thanks for any advise before I have to tow it to the dealership.