I have an 06 ss trailblazer with the stock Bose without nav headunit and the other day my battery died and when I got the battery charged back up now my radio headunit won’t stay powered on. I can get the time to come up for a few seconds but then the unit just shuts off. It doesn’t have anything on the display about it being locked out. If I do the manual over-ride (hold seek/preset 5/ power) it will come on for a few min. but then shutoff again. So is this thing locked or is my radio just toast. Don’t wanna take it to dealer if that’s not the problem thanks