Chrysler transponder key

Hey guys I have a 2007 chrysler aspen.
When I bought this they only gave me 1 key.
So I bought a blank one online and bought a used one that had the internal guts I matched the serials and inormation on the bak of the keys before i bought it.

Now I am trying to program this for my second key but i cant find any information on it. can someone help me with that?
My dealer wants 80.00 just to program the freaking thing

anyone?

Has to be programed with the DRB III and this is the only way to program it.Most of Chrysler's keys with key fob in one can be only programed this way.

is that something i can do? or do i need the dealer

went to dealer with key they tell me they cant reprogram the key because its already programmed to another car.
is that true? I was told you could use the key if all the numbers match on the back.

go to to a locksmith and get a second key cut and programmed from them then once you have two keys you can obp a third key.