Headlights, brakelights, heater, and gauges all dead?

Turns out I may be smarter than i thought... After pulling the gauge cluster I realised I had wired an inline fuse in the gauge hot wire. it was bad, so not having on I walked next door and got one off my buddys at A&J radiator. (good guys, just watch out on the late night when the clear liquor from Mexico comes out.. U may go blind..)

On to the headlights.. I spent all day testing wires and scratching my head when I decided to just start all over. I started at the bat and went forward. Hot, Hot , hot, cold... WTF? inside the headlight fuses on the fender skirt i was.getting voltage in but not across the 20 amp fuse? The fuse WAS NOT burnt.. after testing it 3 times I changed it and bam, headlight work...
Still not heater but as I junked the heater any way, F it. I may looj into why the heater hot wire is dead or I may just cut it out....