Which fits '17 31UL? - the Garmin 770LMTS or the 660LMT ?

[gowestwardho]

Does anyone have any experience and know which of the two available Garmin RV-specific GPS units will fit in the available dash radio space of a 2017 Precept 31UL? (or perhaps they come with various trim rings making it a moot point?).


And does anyone have an opinion if one is way better than the other? (There's only a $20 difference according to Garmin, which seems odd).



If you have one of these Garmin units, do the 3 camera views still work OK? Any other advice or comments on replacing the standard Jayco radio with one of these?

[charlie1047]

We have a 2017 31UL and use the Garmin 770 and have been pleased with it. However, the 770 and 760 to the best of my understanding are stand alone GPS units only, not radio units.