I bought these speakers a few days ago: http://www.bestbuy.com/site/olspage....3&type=product I want to buy these mounts, but I'm not sure if they will work: http://www.bestbuy.com/site/olspage....5&type=product The mount description says they're compatible with many majot brands. I can't seem to find an actual compatibility list or a detailed diagram of the mounting holes in the mount. I've never bought speaker mounts before. How are they typically joined to the speakers? Drilled and screwed in?