You must never do anything of the sort, unless you change lower order parts as well as the electronics
though professional certified to carry out such jobs.
Moving from ordinary to cruise means installing everything from speed sensors, to ECU, to throttle body and almost all the wiring loom.
Having said that, your life is dependent on the quality of parts and the workmanship.
both of which are simply ridiculously unreliable here.
RESPECT and love your life.
Regards.