Amp Research step wiring

[elorenzof]

I added AMP power steps to the 1985 blazer.

I have the wiring all completed on the passenger side via the door courtesy light switch. When i pulled the door switch (unscrewed) from the door frame, i only saw a single white wire, which i pulled off the switch and added the purple trigger wire from the amp power step harness with a new connector. Installed switch back to the door frame, and connected the positive and negative from the harness to the battery. open door, step goes down. close door, (courtesy light goes back off) and step retracts in. Working GREAT!

Now for the driver side. Pulled the courtesy light switch and there is a tan and a white wire, and no matter what wire i connect the other purple trigger wire for the driver side to, the passenger side will trigger and go up and down as well as the driver side. Any suggestions?