I bought six of these LED strips (mine glow RED although when not lit they are clear) from TMI (http://usaled.com/page/nizq/LED_Products.html. Relatively inexpensive and very quick shipping! The LEDs have two brightness levels:

I installed them as you see below using the existing holes and drilling an additional two for the bolts for each strip. The lower brightness level is connected to the side marker lights on the saddlebags and the higher brightness level is connected to my brakelights (in the trunk). FYI, I have a Back-Off device which flashes by brake lights in a pattern, so the higher brightness level flashes as well:

Here's a (bad -- sorry!) picture of the result:

So far so good! Holes disguised, lighting improved. Should be good! It does look a bit like a Christmas tree when I hit the brakes, but cages should have a HARD time missing that I'm in front or beside them!