How to replace dome light bulb in 2003 XL-7

Hi. I've got a Suzuki XL-7, 2003, in which the dome light has apparently burned out. I've looked around, and a replacement bulb costs about two bucks. I checked with the dealer, where it's going for recall anyway, to see if they'd change it, and they told me that it "should" be around $20. Obviously, I would rather change the bulb myself than pay someone $18 to do it. The problem is that I can't figure out, from looking at it, how to get inside the assembly to change the bulb. Does anyone know how to get inside this assembly? Is there a hidden screw or tab or something? Thanks.

Tony

To remove to plactic cover just pop it off. Get under a corner with a samll screwdriver or something like it. It's really quite simple.