Airlift wiring help before install

I just got a question about how to connect my last wires before I install I circled on my questions

Yellow🟡: my pink wiring already has a fuse but no fuse connection if I connect them I would only need one fuse or both connected?

I got a box of fuses and I saw online that the color and # don’t matter just to make sure it fits is that true?

Blue🔵/red🔴: I assume the color connectors matter for how much voltage it is for but which one do I use? Also for the battery positive and negative terminals

This is the last step before I install thanks for the help🤍