used the navworxs
I have used the navworx with the sport efis from grt. Good combo. As long as you are in a coverage area the weather works great. Metars, tags, and radar are as good as xm. The traffic works very well and is very accurate. Spotted a lot of planes that I never would have seen otherwise.. if I had it to do over again I would for sure. The install is pretty easy too. Navworx instructions and diagrams are east to follow..
