I have seen this done plenty of times around here no utilities. People will go buy a plastic tool box and cut a hole for the radio and 2 speakers and strap it down to the racks. Of course they have a cig. lighter on thier quad. But I see no use in it.
I mean it is fine with my for my buddies to have a radio on thier quads. Since they have the rack room. Of course I can't hear it from behind but if I ride even with them I can hear the radio.
Building it out of a plastic tool box is about the easiest way I have seen it done. All you have to do it cut and then install the radio/speakers. If you are wanting to do this let me know, I got tons of extra speakers laying around the house that I will get rid of.
lol i've seen that done, i would never do that to a sport quad though.. only a ute.. buy an mp3 player and some small speakers, so when ur stopped you can just turn it on if u want music that bad.. lol.. myself, i can last until i get home to listen to music.
Partially water proof anyway. I install car stereo, and in the summer we do plenty of boats. And I haven't seen a full blown water proof radio. Most of the time it is a plastic piece that will sit on top of the radio.