Hi,
Two days ago my Crossfire didn't start, it didn't even crank.
After reading about the common problem with the RCM module I decided to take it apart and repair it.
The Relay Control Module is famous to have bad soldering, and that was exactly what I found.
I have documented the work here:
2005 years Chrysler Crossfire: Locate and removing the RCM module
I'm not sure yet that it will not come back later. But if I fixed it I saved a couple of hundred Euros.
/Lars