Using duplicate key on Honda CRV
 

Just bought an used Honda CRV 2000. I was not aware of the antitheft
system and made a duplicate key. When I tried to turn on the car
didn´t work. DOing some research I found about the antitheft system. I
can turn on the ignition if I put the original key close to the
duplicate one. My BIG problem, I cannot pull out the duplicate key from
the ignition.

Any ideas on what to do??