It is easier to key agree but im thinking if the alarm key pad is worn or suddenly not work then how you lock the doors??? as my old corolla key pad was worn i then got a new key pad was the only way to work,so in mean time i used the key at the time, same story with a mates Rover 25, aother mates Honda Civic, both tried changing battery, no go so in end new key pad was only way. + as said alot other cars isnt like this, Thanks for clearing that up though !