Stereo issues
 

Need help. Can't figure this out. I have an aftermarket stereo in my 2001 suburban that I've replaced twice over this. Randomly my stereo will either come on with no sound or the sound will completely cut out while I'm driving. Never comes back on unless you turn of the truck and open the door. The colder it is outside the more likely it is to happen. I do have power when it does this, just no sound. Any help would be appreciated.