Brown wire on cav 22 is ballast bypass on ign2 ( cranking )... it seems the cover just a bit melt due the black wire heat. Just clean the melted cover and apply some tape over the wire

The same with wire on cav 12 which is parking lights circuit as far I recall

I can't recall the violet traced wire loose end on pic arriving anywhere to bulkhead... maybe Horn relay source what came off from the fusebox cavity ? maybe you'll find there the terminal still into the cavity

Violet wire on cav 21 is temp sender. Seems it got some heat over the cover... same procedure, clean and tape it