So, IF a Crossfire owner had ONE good Fob/key, and wanted to have a second "key" that works, COULD they take the metal key off the ONE they have, place/attach the good fob with transducer chip near the ignition switch "halo" , then have another metal key made by a good locksmith, and use the metal keys to start the car, with everything ok as normal ??

And if so, where is best place to "attach the good fob ?
Thanks,-Saul