auto start w/ add a channel problem

Hi all. I have an auto starter and am using an "add a channel" to trigger the starter so I can use my factory remote. It has worked fine for the past 3 years and now it will not work. I tested the auto start and "add a channel" seperate from each other and they both work fine, the auto start starts the car and the "add a channel" sends a good ground. I even tried to add a relay to get a true ground and that did not work either. Any ideas would be appreciated. Thanks.

Did the relay flip? How are you testing the auto starter? did you try grounding the auto starts wire to make sure that it's input did work?