Which navigation system in US SLK ?

Hi Guys,

does anybody know, which navigation system is an mercedes slk ( us version ). Im going to move with my slk from europe to the us. European slk's are using the Mercedes Audio 30 APS. So, is it the same unit ? I ask, cause i need to know, if theres a cd rom available for the USA (maybe in parts) for my 30 APS.

My local mercedes dealer doesnt know.

Thank you for your help.

the U.S. version SLKs doesn't have navigation