W140 keyless entry question
 

I bought a 94 s350 and it didn't come with the key-less entry remotes.

i was wondering if you can sync any remote to a w140.

http://s1157.beta.photobucket.com/us...tml?sort=3&o=0http://http://s1157.beta.photobucket...tml?sort=3&o=0http://i1157.photobucket.com/albums/...1030-00348.jpg

http://i1157.photobucket.com/albums/...1030-00347.jpg
http://http://s1157.beta.photobucket...tml?sort=3&o=1
http://s1157.beta.photobucket.com/us...tml?sort=3&o=1
my buddy had a remote like this that he let me try. it didn't work with the sync instructions i found online. can these later remotes work with an early w140? or a used early w140 remote? or do i have to go to the dealer?

answers are appreciated.