Cut the wires shorter till you get to good wire, then splice on these relays. Full sized mid 90s - mid 2000s have them in the Relay Center
at the firewall under the hood. Grab enough that you have some spares. The gray relays are the ones you need, but the blacks will work also. Gray are SPST, the black are SPDT. Solder splice the wires, use shrink tube over the splices and hang them on the stock Fiero relay hangers.http://www.fiero.nl/forum/Forum2/HTML/121280.html
If you get the relays, bases, hangers, locks and the rest from the junk yard you can forget all the part numbers.