WakeBoard Speakers on GL1500

[JPochron]

Has anyone installed Marine Wakeboard speakers on their GL1500? I'm thinking of somehow making a bracket to install a pair to the side of the trunk. The mount that comes with them is intended to be used on thick bars of 2 inches in diameter or larger so won't work mounting to luggage rack. Installing on the front they might possibly mount to the engine guard but might stick out to far. Anyhow if anyone has done this, how did you do it and do you have pics. Also would appreciate any suggestions on how to do it or not to do it

Thanks

Joe