I have a 14 y/o RC car that has a broken antenna on the remote. Is
there a way to fix that? The car won't work without it. The antenna is
like the ones that are on boomboxes. There was a small piece of metal
that kept it attached to the remote and the piece broke off.

I tried attaching wire to the remote and the car barely worked. Is
there a specific kind of wire I need?

I could probably buy a better car than this one but I don't like
throwing things away if they can be fixed, unless it costs too much to
fix it.