2006 Mercury Milan remote start

 Trying to install a Cheetah Remote start using a Crime Stopper RS-TATA IV Bypass unit This unit has the ring that goes around the ing. switch  & a programed transponder key inside the box  i did get the car to start a couple times on the third start try from the RS  If i have the ring out of place on the ing. switch it will not crank at all . this car has a key sense wire that goes to pos. when the key is put in the ing.  Has anyone done anything like this before?   Thanks   LloydLloyd Borgman

Not really sure what you are asking here...keysense in this application can be used to disable the RS-TATA when a key is inserted in the ignition cylinder. Is this what you are asking?

 Thanks i found the problem, did not have ground output on the grey ground when running wire on the RS  did not need the key sense wire hooked up .Lloyd Borgman