There were a lot of helpful posts and links in those forum threads - much appreciated. I also have a Caprice PPV 6.0 that has touch screen - but rear camera, Bluetooth, NAV and most features disabled from the OZ factory. There are some on a Caprice Forum making up harnesses, plugs and pins to active some of those functions. GM/Holden has enabled some features on the '14 Caprice PPV.
I was hoping that since this Taurus PI was optioned with Synch Voice Activation which looks like it comes with upgrade radio head (Sony?) and other non-fleet bare bones options that SIRIUS might be accessible. Will check with the local upfitter next.
Any other input appreciated.