I was at Lowe's today and found a great light for attaching in the charge cover. It is a LED motion sensor light that attaches magnetically. I put mine right about where the Nissan badge is under the charge hood. The light is powered by 3 AA batteries. It turns off after 60 seconds (or you can set it for 12 secs). The LED's can be tilted to focus light right where you need it. And the magnet is one of those strong types that means the light won't be bouncing around and falling off in there. No problem opening/closing the charge hood.
Here is the Lowes link to it: http://bit.ly/gJ4bFs" onclick="window.open(this.href);return false;
Amazon link:
http://www.amazon.com/Linear-Motion...AFVK/ref=sr_1_1?ie=UTF8&qid=1330266692&sr=8-1
I tested it out tonight and it works wonderfully and best of all - it's only $13 and it solves the whole lack of light thing when I pull into my dimly lit garage (I only have the garage door opener light).
Here is a picture of it