I just purchase 3 Maxxair II vents. 2 are smoke and 1 is black. I had a Maxxair vent (1st generation) cover on my last RV and it worked great. As soon as I get my 5er back from dealership, I'll be putting the new covers on. As said above, this is a very easy mod...check youtube for a how to video.
'14 Ram 2500 MC CTD
'14 287BHBE (gone)
'16 North Point 377BHRL (current and hopefully last)