Can I install a roof dome light for the passengers in the back? I have two kids and my oldest likes to be able to see at night sometimes, to look at a book or just to look for something she dropped. But... the front drivers light isn't enough for her to see. Is there an aftermarket light I can install or something I can install without to much trouble? I'm a huge DIY, Type of guy so I don't mind the work just need help figuring something out.