Can't find the switch
 

I have a 2003 Seville SLS, but I believe its the same on all Seville's at least from 2000-2004. When I open the door to exit the sensor or switch doesn't alway's work. The one that turns on the interior lights, turns off the radio and retracts the seat and steering column. I end up opening the rear door mainly to turn off the radio. On any other car I have seen there is a spring loaded switch on the door. I can't find anything on the Caddy. Can anyone tell me how it works?

you need door lock or latch assembly. switches are part of it.

Thank you very much
 

Very helpful information, Thanks for you experpise.