Mopar has released the Remote Start kit for non-air suspension and non-remote tailgate trucks. I'm blown away at the installation instructions - replace the hood latch, remove both rear seats, and tear into the upper center console among others. Fun read if you're waiting on your Ram, especially if you have remote start from the factory.
https://moparonlineparts.com/1500-remote-start-p-8846.html
https://moparonlineparts.com/1500-remote-start-p-8846.html