Thoughts on keys

[Littleissue]

Ok so it would appear that the Aston Martin valet keys have the same circuit as the Volvo keys, therefore, if you have the casing to an Aston Martin valet key with the transponder in it ,is it feasible to use the two key method to programme the transponder and then buy a Volvo key with its code put the circuit board in the Aston Martin valet key and get Aston Martin to add this to the Aston Martin using the Volvo key code.