From what I remember reading somewhere the newer board monitor radios have two tuners so you don't have to stay tuned to the channel broadcasting the tmc data, while the there was an older radio that supported TMC (becker bm24?) but only had one tuner so you had to listen to the channel doing the broadcasting. Does anyone know if I am correct on that? If so which verson of boad monitor radio did a 03/2000 X5 come with? Did it come with something older that doesn't support TMC at all?

If i came with an old radio that doesn't support TMC and i wanted to upgrade so it did would I just need the radio or since I have DSP would I need a new DSP amp to work with the new radio?

Thanks for the quick reply.