The past couple days whenever I try to start my SHO in the mornings or after a long period of time, everything goes out, the clock the lights even power windows and locks. Yesterday I jumped it three times with no go and it came back briefly when I disconnected and cleaned the battery cables. I haven't had anyone to really take a look at it but from description I heard the altenator could be dying but I suspect it could just be the battery cables. The positive had a lot of corrosion which I cleaned last night and the ground cable is pretty worn out looking.