It should fit but bugger all else will. I sold my Sena 30K to finance the BMW comms BUT thought bugger it! it's well over priced for what it doesand fitted a cheaper in helmet Sena unit (about the only option left for me)....BUT it doesn't stop there, I'm now having trouble trying to fit the GoPro....I've just bought a £24 mount and I'm not happy with where it has to go due to the shape and style of the helmet, it just doesn't take kindly to fitting/sticking anything on it.
Not an happy bunny and I'm trying to make my mind up on whether to sell the bloody thing!!