For the most part, it is universal. but the problem is, Acura's bluetooth HFL doesn't seem to work well with some bluetooth enabled phones. I think it has to do with the phones profile ability as some some phones do not support the "Hands Free" profile (kinda like how Verizon's bluetooth enabled phones have been crippled).

I would've recommended the W300, but it may seem that you'll end up with Samsung as SE phones don't play well with any of Acura's (if it is for the TSX) bluetooth capabilities. Though I may be wrong, it still wouldn't hurt to check. There are some folks on HoFo that complain about SE phones not working with their Acura's.