i pop a fuse when i put in my new head unit and when i did i had to change fuses after i did so i went to start the car back up and it read no bus where my odometer is so i disconnected the battery (-) and hook it back up same thing then i started it and it run for like 10secx and kill its self so i disconnected it and and when a pulled the autoshut off cuz a freind of mine how works a mechanic for dodge that was my problem and said to pull that relay and let it sit disconnected for and hour and put it back and it would be all right after that i hooked it all back up and now the thing will not even start help please