No dash lights. Fuse box?

So started really digging into my 68 barracuda fastback that I bought almost 6 months ago. The guys before me added a tach and water temp gauge but left them dangling by their wires on the floor. I thought the wiring would be a nightmare after that but doesn't look bad at all under the dash. The headlights, high beams, parking lights, tail lights, brake lights, wipers and blower motor all work. Do not have horns, turn signals, or any interior lights at all. I doubt all of the dash bulbs are out so figured it had to be electrical. Looked at the fuse box and here's what I found. What am I supposed to do now???!!

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