So I bought a 2001 Sable LS Premium, and it came with 2 keys (thankfully), but no FOBs. I know its got keyless entry because its the LS Premium, complete with door keypad. I was going to buy a few remotes on Ebay, but do I need to worry about certain FCC IDs to match the car? Or can I just buy any Gen4 FOB that says it will work with the year and program them? I didn't buy it from a dealer, so I cant just ask for some FOBs without paying through the nose. Let me know what you think, thanks!