I was into Princess auto the other day came across a keyboard fan , it was nice and light flat had 2 rather large fans $5.99 . IT looked almost exactly the same size as my roof vent so I bought it. My plan is to either to remove the screen and install it /replace screen or just use Velcro . I have an extra plug to switch out so it fits into the dome light plug . Once i get it all figured out I'll post a pic. Curious if anyone else has done this? or something similar?