Then you'd have to make sure the new remote transponder can be programmed for your car.
Otherwise if need be you could just move the metal key part physically (diy)???

Example:
http://www.ozhonda.com/forum/showthr...&highlight=Key

Example of programming a remote (though it will be different depending on the model):
http://www.ozhonda.com/forum/showthr...&highlight=Key