Hi, would like some opinions on the problem here..... Had to replace head gasket, radiator and some other stuff that started with a dead battery (which does not make sense to me, but there it is). Then when I got it back, I started getting Pull key wait 10 seconds shutoff thing even though recall was done years ago. Mech had it all last week trying to track down that problem and has now ordered a new BCM, but things are getting worse. The key fob started failing intermittently and seat moves randomly when key is inserted. Today, the passenger DRL failed but would still blink, replacing didn't help. While running codes, radio lost it's bass then everything died and car will not start (click sound). Can this all be related to the BCM or the battery or both? Supposedly the battery checked out when he had it. This is costing a ton of money. Thanks for any help.