You'll need to select "DVD based navigation unit - for all other Infinity owners". The web site will ask for a VIN. I went to EBay and found a G35 for sale and used that VIN. I'm not sure why they need it.d-dash said:which disk is the one i need? i am assuming the infinity, but which one of those?
The SRX also uses a different Navigation system. No other Cadillac disks besides the CTS ones will work in a CTS.odysseus said:Nope. I think the CTS and SRX are similar, but the other Caddy Navs are different. Cadillac does have newer disks out (than my early O3 disks) but I don't think they're as new as Zenrins.