This is totally normal. The radio needs to be "introduced" to the nav computer. Officially, this requires dealer coding. However, there are two other methods: OS downgrade/upgrade or coding with NavCoder. Here is a post that explains it in more detail.

Restoring INFO & SELECT is easy; white line may be a screen defect

Of the three options, I recommend NavCoder.

__________________
SOLD
2000 E38 750iL Highline Edition, Upgraded with the lastest 2006 X5 Electronics
MKIV Navigation, 16:9 Display, Bluetooth, TV/Video with Backup Camera, Sirius, and Aux Input