Originally Posted by onehundred80

Is it not possible to take the tumbler apart? If so get a new key cut to the old broken key parts soldered together if necessary .
Or buy a new tumbler and key and have a new fob key cut to the new key, you can buy blank fobs and use the blank key in it cut to the new tumbler key.
Or if possible modify the tumbler to suit your old key.
Tumblers are not especially made for the Crossfire.
Do not try to hot wire the car that will ruin something for sure.