So I bought and installed the factory kit to remote start our 2018 forester. Installed by the numbers. Actually really go instructions. Well all done and buttoned up. Started with key as the directions say, all warning lights out systems look A Ok. Press the remote fob as required, get beeps and lights and nothing. No start? I see at the end of the directions about system registration. Is this the cause? Doesn't say you have to but do you? Anyone have information on this? greatly appreciate it!