Is just one of many "standard" Packard plugs (Most to all plugs have PED on them for Packard Elect Division.) but very hard to find new for this type. Is not a part most people would used so never sold thru aftermarket. I'm betting Hard to find thru dealer parts too.
You will need to get used ones from about any GM car's dash from 70's to 90's and maybe more and splice as a "pigtail" end(s).
When at yard, Cut wires as long as possible so can spread out the splices so everything fits under dash trim.
I would get 3-4 plugs so you are sure to have enough pins.
Back side plugs are same thing but 1 is 10 pins, other 18 pins.
Not all pin positions are used even tho Fiero 18 dash plug look like it should.
Pins are removable you can match wire color and put pin in the right location. GM use most of same colors for each signal, power, etc, but moved pin positions as needed.
Is better and smaller to properly solder and use heat shrink tube.
Solder gun (like Weller 8100 or 8200 models) w/ ~100w is needed to heat the wires fast w/o major damage to insulation.
see
https://www.fiero.nl/forum/F...HTML/138962.html#p11------------------
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