I found a dealer that is going to try to set the radio to EU settings. He told me that it is possible. He needs to ask AG for the encrypted key to reset the radio to EU settings. He is not able to switch it himself. Hopefully AG is willing to cooperate with the dealer. Keep you posted.
PS: he is going to check for a KMH Speedo as well.
2008 M3 E90/SSII/Black/6MT/19s/chip=456PS