Hi my truck is a 96 chevy k1500 5.7L. So I walked out to my truck today and the remote didnt work, so i open the door manually and then there is this fast clicking noise that does not stop unless i open the glovebox. The radio display barely comes on. there is a whining noise when i try and turn the headlights on. so basically i have no power. and when i tryed to start it...nothing. so i am guessing its the battery. i bought the truck a few months ago so i dont know how old the battery is. it doesnt really look corroded. also i just installed a cb radio and wired it into the radio fuse. could this effect anything. truck also sits for days at a time sometimes and we just had our first bout with cold weather what would you do?