if you don't wanna bother buying a new one, all you need is a coat hanger, a drill-press (with a small drill bit, thick as coat hanger wire) , some glue, wire cutters and a big flat blade screwdriver.
pull back the trunk liner, so you can get to the metal pin that pulls back the plastic pin, and unhook it.
from outside the car, useing the flat blade, pop out the circular gromet that the plastic catch pin is mounted inside.
once it's out pull out the plastic pin and put it in a drill press and drill a hole straight down though, but not all the way. cut a straight piece of coat hanger wire about an inch and a half long put a little glue in the hole on the plastic pin and stick the wire into it. depending on how much of your plastic pin got snapped off, you will have to cut some of the wire down to fit it right.
