Happy Turkey Day to y'all. I want to have some speakers that I can hear at 70mph or so. I have a homemade with a 1600cc motor with not too loud headers. No windshield at this time. I'm looking for speakers that I can hook my mp3 to, no need for a radio. I have room for an amp and I ride in a 3/4 open face helmet. Any suggestions for a small budget will be appreciated.Thanks for your time.