In October I tried to install the latest software update for my radio system, 8.4N I think. The install finished but complained about an error during the process and to see my dealer. I drove it this way until now even though the FM presets no longer worked. Took it to dealer thus week to have them do the install. Fail. The install never finished at all on three tries for them. Now radio is dead. They are ordering a new one under warranty. I guess it normally costs $750. To be installed next week when it comes in. Any others seen this?