[s-cars] Keyless remotes for 1997 S6?

[henryb at aciworldwide.com]

I just bought a 1997 S6 (Canadian model) and it did not come with the 
keyless remote.  So I am looking around ebay for one to buy (the dealer 
wants $225CDN for a new one!!!).  The problem is that I have found a 
couple listed on ebay that "appear" to look right, visually... the seller 
says that it came from a 1997 A6 (which according to the owners manual is 
the same system).  But the part numbers don't match up?

The seller lists both US and Canadian part numbers:
FCC ID:  MZ2 410 819 4
Canadian #:  267 410 293 3 VDO

However, my dealer says the part number they have on their computer is: 
8L0 959 753

So, I am not sure if this keyless remote is the right one (it looks the 
same as the one in the owners manual)??? 
Is there any way to tell?

Thanks,
Brent Henry