New Key learn and remote start

Good day all!
My 9-4x has only one key, so i found this article regarding manual learn method:

http://saabworld.net/showthread.php?t=31171

I have one question: if i'll buy a new key fob with remote start (for example from eeuroparts: https://www.esaabparts.com/saab/parts/25849810 )
will it be enough for the remote start to work, or not? Do i need any additional equipment or programming?

Thanks i advance!

I purchase a spare key off of another Internet site. I found instructions for programming a key for a 2011 Cadillac SRX. I followed those instructions and everything, including the remote start, works perfectly.

Thanks, will try also.