I installed an Alpine radio and Fosgate speakers in a fairing on my 2012. Everything seemed fine, but now the radio totally shuts down intermittantly. At the same time, the light on my speedo goes out. It sometimes lasts for a few seconds, sometimes for a couple of minutes. Then the radio will start back up on its own. I replaced the radio with a different one (same model), tugged on all the wiring to try to re-create the problem but it only happens when I am riding. I can sometimes go a half hour or more without it happening, sometimes it will occur right away. Bike runs fine, no drop in rpm's or performance. Any ideas?