Hi,
I have measured my car's battery drain when in standby.

I found it to be 0.15 Ampere, it sounds a bit too high, The Crossfire is known to have high battery drain as I understood but I have only found one figure of it, 0.09 Ampere.

I have detached the fuses one by one in the engine compartment. Still the fuses at the door and in the trunk left to investigate.

This is how I did it for you who find it interesting:
Chrysler Crossfire: Battery Replacement

The battery behavier in summer is that I can leave the car standby for three weeks and still get it running. In winter a few days.

/Lars