I'm sorry guys. I've looked everwhere, did MANY searchs & couldn't find the post where someone said where the NAVI DVD player is in the RDX? ('08 tech)
I want to check & be sure what version the DVD says on it before I get the 4.64 version.

 

It's under a cover on the side of the center console in the passenger side. Gently pry the cover off from the bottom.

I'm still unsure why anyone would buy the 4.64 version. It's the 2008 update - and essentially the disk that was released last fall. Unless Alpine has decided to skip the 2009 update, it should be out in a month or two...

Mike

 

Thanks Mike. I'll give that a try!