Help with replacing old vent with Fan-tastic Vent.

[flyingfinn]

I bought a Fan-tastic vent to replace the old vent which cracked and flew away in a windstorm. The new one has a fan. I need to connect the electric line to something for power. I have a 28' 2008 Safari. The closest item seems to be the fan in the shower. Is there any magic to doing this other than to just to poke the wires through the insulation? How would I get through the ribs in the ceiling? Any experienced helpful comments are greatly appreciated.