Hello. I am trying to install an EVO-All with GMT1V2 T-harness in a 2014 chevrolet cruze. (remote starter is programmed and works with OEM remote) I have an RFK-442 kit I would like to install without the RFA2A adapter. I have 12v and ground present at the datalink from the t-harness. Am I wrong to believe that the antenna kit can wired into the Datalink plug? I have wired it as such, When I plug in the antenna. the LED will light for a second. but when I follow the RF kit learning prcedure for the EVO-All. the antenna LED does not respond. Is the RFA2A really required? Thanks