OK, don't take this as law because electrical stuff is weird. But '08 was it's own system and they had tons of problems with the win's as you said so that system was cancelled quite a while ago. But as far as I know, the '09-'10 system has been cancelled as well. If you look up a replacement win module, the part numbers for '08 and for '09 are different. I believe the manufacturer is different between the two but that only matters for the keys. The connectors for the module are the same between years so they would plug in. So I can't guarantee it but I see no reason a system for the '09 model wouldn't work on the '08. I might actually have an '08 system at home, would have to look and let you know. Oh, and your other question, they come in 3 button and seven button for the fobik so if you have any power doors, you get the seven button and it will work what you have.
FYI, the part number for the '08 system is 82210987AD, there was a dealer in Indiana / Illinois somewhere that showed they had one. Your dealer should be able to check.
Last edited by Tizzy1; 10-07-2013 at 02:19 PM.