On my 96 silverado, when ever i turn the truck on the clock resets itself to one o'clock, i then put a new head unit in and it would reset everything like the clock and the presets and all the settings i had. I now no its not the head unit, i didnt really expect it to be but any ideas of why its reseting itself? Any help would be useful this small problem gets annoying

 

check the wire that is the "keep alive" or memory wire....sounds like the wire has come undone or there is a fuse problem.

 

the memory wire would be on the back of the head unit?

 

Yes and also in the factory wiring harness.........if this checks out good then you need to start looking st your ignition switch