I know a lot of you guys are driving Chevy trucks, have any of you had electrical problems ? The truck will act like the battery is dead,then start up like nothing is wrong. While driving down the road the gauges will go haywire, elect locks start going up and down,radio goes out then it shuts down. If anybody else has had similar problems....what was the fix?? The dealership guys act like they have never heard of this problem!