A 4+ FUNCTION REMOTE CONTROL DOOR LATCH OPENER SYSTEM INTRODUCTION Thank you for purchasing the CMD-4000 series Remote Control Door Latch Opener System from Dakota Digital, Inc. This, along with many other products that Dakota Digital, Inc. has to offer, represents the latest in electronics technology for the street rod, classic car and truck, and any custom vehicle. The CMD-4000 Remote Control Door Latch Opener system comes complete with receiver, two key chain transmitters, wiring harness,