it will start with a jump and be fine for about2 weeks then nothing. gotta jump it again. also the dome light would not go off so i took the bulb out thinking it was draining the battery, didnt help. clock on the radio stays on even when parked, took radio fuse out, still on. dont know if clock light is supposed to be on or not. battery and alternator checks out good. any ideas why ya never know when its gonna start?