I have 2 Sony Navitus' for sale, 1 is a barely used model...used it more setting it up than client used, other is from same client but was acting up so it was replaced by Sony and has not been used at all, it is labeled as a refurb

I would look at RTI T3 or T2+ as well as the MX3000. I have had issues with the MX3000 and adding RF to it...Most of the ones we did didnt work well.
Navitus is not capable of RF, RTI is awsome with RF, done a few now with no issues, but needs to programmed by a dealer

www.rticorp.com
[Link: universalremote.com]