My Grandsons Crossfire, he is in another state at college, wouldn't start yesterday. It does not crank. Everything else seems to work. Tried a new battery, no change, replaced the RCM, no change. Have not yet replaced the CPS because they don't usually just die, do they? My only other thoughts are the starter or security system. As usual none of the european shops want to work on it. Any suggestions? He is in Tuscon.