Silverado gauges stop start

SOURCE: battery keeps dying due to radio+clock staying on

your radio is staying on? you have a bad door switch.the bcm does not see door opening and thus does not turn radio off. most likely the drivers door.

SOURCE: starts then dies immediately, drained my battery

Is the security light blinking when it dies?

SOURCE: 2003 Chevy 2500 HD-Problems with it quitting while its idleing

This is going to sound crazy but i had the same problem with my 2003 silverado, changed the plugs, battery, and alternator with no sucess at all. Finally took my truck to a well respected auto repair shop locally in my area and they suggested i change the fuel filter under the truck. Crazy right? Why not, so i did and my truck ran perfect after i changed it. Shop tech said my truck was starving for fuel which in turn was not letting the alternator spin above the correct RPMs at all times which in turn caused the electrical computer system to not operate correctly. If you tried everything might as well try the fuel filter before you have to spend big bucks at the repair shop. Hope this helps.

SOURCE: 1997 Chevy Silverado - engine turns over but will not fire

I was leaving for work, as I started to excellerate, my engine starting getting sluggish, check engine light came on, so I pulled over. As I pulled over it started to smoke, when I opened the hood I couldn't tell where it was coming from. It will turns over but won't start.

SOURCE: Battery/Electrical issues with 2002 Chevy S10 pickup

Sounds to me like the battery post is breaking away from the internal plates. This is something that happens from time to time with a battery.