So went to truck this morning hadnt been moved in a couple weeks. Key fob didn't work thought batt. dead. so unlock with key horn blows put key in try to start nothing horn still blowing. Still thought batt. need charging hook jump cables still nothing horn blowing. Unhook batt. for 30 min. hook back up key fob work 1 time but no start. anti theft light on. Try key relearn several times but light never goes out. Un hook batt. again 30 min. and it starts radio come on but then it goes off no gauges windows not work. 6 fault codes for BCM. where to start?