Need help in mounting Home Theater Speakers

I would post this in HDTVArcade, but the forums are down at the moment.

Due to frequent remodelings of my room, I had to find a new position for my two front speakers in my Home Theater setup. I purchased two of these wall mounts from amazon...

http://www.amazon.com/gp/product/B00...lance&n=172282

in order to mount my Kenwood front-left and front-right speakers, shown here.



The speakers have an insertion in the back where one of the included screws could fit through, as shown here.



As you can see, one end holds the speaker in an angle while the other end is to be screwed into the wall or ceiling (ceiling preferably).

So far so good. Unfortunately, it seems the speaker is too heavy to be held up by the wall mount, which forces the mount to drop. If I were to still install it on the ceiling or wall, the speaker would be facing downward, like so.



Even though you can tighten the joint supporting the speaker, it's still too heavy for the wall mount to handle no matter how tight I make it.

The obvious solution would be to purchase different wall mounts, but that would be a serious pain to resell the original ones while ordering another pair that may or may not work. Before I go through that, I was wondering if perhaps I could drill a small hole at the top of the speaker. That way, I could still use these wall mounts to put them on the ceiling, looking something like this.



This way I don't have to worry about the joint not being strong enough to support the speaker, since it's now facing vertically.

The question I have for those here is whether it's safe to drill a hole on the top of my speaker without damaging any wires inside. Then again, another option would be to use a really strong type of glue to bind the mount to the top of my speaker, without using any screws.

Any ideas would be very much appreciated.

Also, if the pics are too big, let me know and I'll resize them.

Jam it back in, in the dark.

Could you not just return them and get better mounts rather than causing permanent alterations to your speakers? If you really wanyed to modify your current ones take them apart and see where it would be possible to drill new holes and use nut and bolts to secure them to the mount rather than screws

How ya doing, buddy?

The problem is they were purchased online, meaning that returning them would be a real hassle.

But, I found a solution, or rather my mom did; kite string. I tied kite string around the mount in order to tighten the joint, and it worked like a charm. Once I get both speakers mounted on the ceiling, I'll post the results.

This thing is sticky, and I don't like it. I don't appreciate it.