I was hoping not to have to buy a new helmet, but unfortunately it looks like I will have to. I was going to forego using Apple Car Play, since it can only be used with a BT helmet, and the one I currently have is not BT. This helmet is almost brand new, but the louvers on the vents rattle so badly (whether open or closed) while riding the noise is driving me nuts. It's a Bell helmet, and while they are a lower priced helmet, they have been good helmets (at least in the past they were) for the price. I'm not paying Shoei prices, so are there any decent BT full face helmets for say $200 or less? I could do another Bell if they have any decent ones...