So I started with a Garmin GDL-39 connected to a 696 which gives me free weather, TFRs and occasionally traffic. As many of you may know if you have just an ADS-B receiver you will only get traffic if someone else pings the system. Other planes make some of my passengers anxious (swmbo) so I bit the bullet and installed a Navworx unit. I also upgraded from a GTX 320 to the 327 (anybody looking for a cheap transponder?). I have been up for one flight and everything seems to work. I will confess it is kinda nice seeing all the other planes (those with transponders) on my GPS display.