I've got the 6.5 infotainment with WHIM and HD 20s head set. Above 60, or so, with my modular helmet, the wind noise is so loud that I can't hear enough of the music to make it worthwhile. If I turn it up enough to hear, the sound is terrible. Would an amp put out enough power to make the music good even at lower volume? Or make it clear on higher volume? I don't know much about sound systems, obviously. I don't use the speakers on the bike at all. If an amp would help, what recommendations? Thanks, JD