If you have a cradle for a BMW Nav 4, 5 or 6 then yes, the 660 will fit the cradle. If the R is an LC model with the Wonderwheel control then this will not work with the 660.
If you're looking for a Navigator, try to stretch to the 6. The 660 is compatible in the sense that it will be powered up & wil navigate for you. As Wessie says the 660 won't function via the "Wonderwheel" but that may not concern you.
If you're looking for a Navigator, try to stretch to the 6. The 660 is compatible in the sense that it will be powered up & wil navigate for you. As Wessie says the 660 won't function via the "Wonderwheel" but that may not concern you.