electrical question

you should be able to push a small tab from the front that clips outward and holds the little things from going backwards in the holes... after you bent those in they should slide out easily. replace with same gauge wire. find out WHY they burned up. things just dont burn for a reason... there was a short or something wrong with the circuit and the wire got hot... theres nothing high amperage under the dash that should burn up like that. I'd inspect everything for some hodge-podge wiring patch that a previous owner might have done...