Ford Electrical Issue

Hey guys,

My buddy has a Ford Expedition and he bought Spyder headlights and attempted to install them himself. He was able to get the housings in just fine but jacked up the wiring somehow. They worked for a day and now no lights work at all. All the interior lights are out and all the exterior lights are out. I'm assuming he blew a fuse somewhere, but if anyone knows maybe a bit more or where the fuse might be located would help me help him.

More details -
Spyder projector halo style headlights. The turn signals and headlights worked but the halos never would come on. Directions supposedly said to wire the halos into the turn signal wiring (doesn't make sense to me but ok).
Day 1 - Headlights, turn signals and all other vehicle lights worked (instrument and interior lights as well as brake lights). Only the halos would not illuminate.
Day 2 - No lights work at all. Interior lights wont come on, instrument lights do not illuminate. Brake lights, turn signals and headlights do not work either.

I didn't help him with the install or even know he got them until the night of day 1 when he pulled up with the new lights. Then day 2 when he showed up to work in his dads car and told me what happened.

Any help or ideas are much appreciated!