If you're new to the RV world, then this next tutorial might help explain a problem you may experience. Installing an RV fan is a great idea, especially if it's able to take out the old air in your car and bring in new air.
This tutorial talks about the issue with trying to install an RV fan when electrical wires aren't close by. It's good advice that will help you out. Good luck and enjoy!
Start your career in Graphic Design with the WonderHowTo's Beginners’s Guide to Photoshop Course