FOBS, also called FOBIKs, short for Frequency Operated Button Integrated Key
are now called RKE
devices, short for R
I don't know if the 2013/14 RKE devices are the same as the previous RKE devices, but i will assume they are
IF you have 2 RKE devices for a single Ram & they both work, you can buy a 3rd or 4th Blank RKE device & program it or them yourself
If on the other hand you have lost, ruined, or misplaced 1 of the 2 RKE devices, you can purchase a blank RKE from any one that sells them, BUT you must go to the dealership or certain locksmiths to get it programmed.
You should know that if you purchase it through a dealership, they May
not charge you to program it, but some will.
Also you should know that the dealership has 2 prices, one price for the outside shell that has the word RAM imprinted on it & a lower price if it has the word DODGE imprinted on it. Both are identical devices, except
for those words.
the battery & the transmitter chip are identical in both
I would say that buying your own blank RKE device from https://ikeyless.com/
is the better way to go
that site also explains everything better then i ever could