Hi guys and gals, simple question. I want to put some speakers inside my helmets. Bell RS2 and MT Atom flip. Not bothered about hifi sound as I only really want them for google maps and satnav use. I don't want to use in ear buds as they either get dislodged when you put your lid on or grt very uncomfortable after a while. There are a lot of Bluetooth solutions out there but every one I look at has an enormous carbunkle to attach to your helmet - not normally an issue except I already have a ghost X camera on the side and I really dont want any more crap hanging off there! All I want is some simple reasonably audible Bluetooth speakers - even a single speaker would do, that can be left in the helmet and charged/ activated with something that doesn't resemble half a housebrick on the outside. Anyone come across anything that fits the bill before? Cheers!