I jump started my 07 mustang after a total dead battery and after a few seconds the radio pops and shuts down. It wont come back at all like a total power shut down but checked all fuses and they are all ok

Disconnect your car battery for 30 minutes. Plug it back in.

I have an 07 mustang. The battery died, had to jump it, fried radio no warning or anything, just never came back on. I bought new battery, took it to dealership, checked all electrical...told me all else was good except radio fried. 2 days later, battery dead again, new battery...I have been told to pull fuse out from kick panel, to the radio n amp, both the same, i have n waiting to see if this is the problem. Mechanic told me that even though radio is dead, car is thinking its on and pulling current even with car off. I will keep you posted, maybe yours n mine are having same problem.