This amp is a bit too large to mount on top of standard head unit (which is what I was hoping for) so how are people mounting them on their RGs? I've read that some use a heavy duty velcro and mount to the fairing itself, anyone tried that method and how did it work out? Which velcro model did you use? I travel some reasonably rough (frost heaves, etc.) roads and don't want it coming loose from being jounced around. Your thoughts, tips?