no haven't tried it. it's a very expensive test at around $600 plus another few hundred of install. i already have bluetooth. spending 700-900 seems not a good option to test my BT connectivity. if that's the only option i may go with purchasing another approved phone, get a second line ($10 a month) and just fwd my phone to that 2ndary # when driving. that' would cost about $100 a year and it's guaranteed to work. and no one will f$*# with my M's electronics either.

i wish there was a way to just upgrade the software and/or firmware on these things to the latest bluetooth specs.