I had the sofware installed to activate blue tooth in my 04 545 today. Works great with my V3. Phone book and everything transfers. I'm going to try my wife's Sony Erickson when she gets home. The only downside was the $300.00 it cost at the dealership. I tried to get it done cheaper, but that was the best they could do. It also included the latest software update 19.1, I think. Everything seems to be working just fine and I'm happy the phone works, even if it cost me a couple extra rolls on the craps table in Vegas next weekend.