So here is an update... I was in Ohio for a few days in the middle of a couple of jobs. I was going to purchase a new garmin that had a GTM36 and swap with mine and then return it, to further troubleshoot the traffic issue. To my surprise they had a Dezl760 on clearance and it was the display model... So I bought it took it out to the truck snapped the new GPS on the cradle on the truck and boom traffic worked instantly, with my old cradle and power cord... So it is definitely my old GPS that's the issue... I am going to swap units and return the already opened box purchase back to the store. I also flashed my original back to a Dezl 760 with success...
So my concern is that maybe since my old units traffic worked originally when I bought it I am leery of updating the software/firmware in anyway since I just drove around 1K with it and it worked smartlink doesn't work but as long as it receives it with the antenna fine...
Is there a way that I can bu the state that it is in now... firmware software everything in case i update it and it looses its mind basically so I can go back to stock if an issue arises...