Spoke with technical support at Omnitracs/Qualcomm, and they said the main issue is having a knowledgable technician install the system. As long as a truck has an ECM it can be done. They basically said the same thing, most of the problems I've been reading about are typically results of improper installations or guys not really knowing what they were doing.
You would think they would be advertising the compatability of their systems better in light of the future possibility of mandatory electronic logs...
Appreciate the help, big decision coming if I'll be returning to expediting and I'd prefer to do it in an already paid for truck!