The Clifford is compatible with the EVO-ALL but not the INT-SL+. EVO-ALL can be programmed to D2D protocol. I would recommend maybe forgetting about datalink in this setup.
Can I also confirm that the remote starter ignition connection doesn't supply power to the ignition? That's certainly what the diode position tells me. Given that, it must be one of the 3 connections at the push button ignition that turns the ignition on?
That connection, the EVO starts the vehicle by pressing the brake and then pressing the PTS button. The remote starter is powering ignition through the (-)ignition and not the (+)ignition. You must also set a DIESEL timer in the remote starter, not the EVO.
When I hit the Remote Start fob, I can hear the relays clicking on the remote start, so that's functional. The PBStart button lights up green like it's ready to start, and the vehicle brake lights come on. The Red light on the EVO ALL turns on. Just not getting the car to do anything else.
The relays clicking is most likely the parking light relay you here.
You are getting brake lights but no start. Make sure to have diesel mode setup in the remote starter. Also, remove datalink. When the brake lights turn on, if you hit the PTS button manually, the car should start. Have a feeling the EVO is not receiving the start command properly from the starter.
come to think of it, the INT-SL is not listed as compatible with that vehicle. I would remove it completely and follow the EVO-ALL installation guide.