I have the exact same problem. I went to start my 2005 Crossfire roadster abd noticed the key would not turn to start position and that the shifter was locked in park. I also noticed my brake lights do not work. After checking around I noticed a wire hanging down under the dash with the stoplight switch attached. I removed it and noticed that there were two plug slots, and only one plug. I ordered a new one and have it ready to install but am confused about the only one plug. I understand the SRT has only one, but mine is a basic.
I'm hoping that my starting issue will be fixed if I can get the brake lights fixed.
Thanks,