And I say "real mistake for the average owner" based on the past two people who have come to me personally for help with their crossfire which they just bought and can't get anyone to help them get the car to run - because it has some hack-assed install of a "keyless" mod.

Have you seen some of the crap people do? I'm sure you will do it right, it is your car. But these awful shops that do these mods appear to me to be automotive abortionists.