I actually tried installing one on our G. Sticking LEDs under the rocker and will on turn on when you open/unlock the door.
But it drained my battery. (So I took it off...) but later realized that it was my battery going bad.
Didn't have the time to put it back on. (you really need to be very organized/neat to make it look good and not rice)

 

It would take a LONG time for small LED's to drain a car battery

 

Checking if anything came of this. Sounds interesting...

 

Yeah I imagine if you buy the kit from the Nissan Altima Accesories website it has instructions how to install so it looks factory. If or when you do install it back on your G, post some pics so we can see how it looks. It def looks good on the altima at night. I am ordering the kit very soon and will post pics when I install. Its just another LED lighting mod for people like me who love LEDS