Final Update on issue and hopefully this contributes to helping somebody else.

• After informative discussion with GannyX, I searched out a working DRB-3 and got the car in to be scanned - Thanks again James
• To maybe help others in the Mid-Ohio Valley area, I found DRB-3 with Chrysler card at Kinchloe Motors in Parkersburg, WV
• Scan showed 2 items saved;
  • BCM scan showed open circuit at Siren
  • SKREEM scan showed driver's cylinder lock switch sense (unlock short to ground)
• Left car at shop for them to track down ground issue, which they approached by sequentially disconnecting/checking each item on Fuse #9
• Short found, in of all places, the wiring to the dome light. A screw holding in passenger side visor had been run in between the 2 wires to dome light and over time had worn through insulation and shorted the 2 wires to each other. Just a highlight to everyone that wiring in that area runs very close to the visor screws.
• With the dome light wiring patched up everything is working perfectly again and problem codes are nor reappearing

I found it quite interesting that the scan results pointed to a couple issues that were not related to the root problem. I thought it would be a problem in the driver's door after seeing the scan results, but obviously a grounded circuit can be tricky.

Anyway, I wanted to publicly thank James, another huge help from MSS that didn't result in any gain to them. Very commendable. Hopefully the DRB-3 source and experience with where the wiring failed may be helpful to another Crossfire owner in the future. Thanks to everyone for their input and assistance with my problem.