Alright I've pretty much got the remote start figured out, but I'm not sure what to hook that wire up to. The alarm functions, remote start relay is not installed, just prepping the harness so I'll have a warm winter.

 

you dont need it. its an activation input meaning if you ground the wire it will trigger the remote start. some installers use it so that the vwhicles factory remote can be used to trigger an aftermarket remote start.