However, a remote car starter does this without a physical key in the ignition. This is possible when the control module is wired into your starter mechanisms and ignition switch.

When you remote-start your vehicle while you’re still getting ready for work, you greatly prolong the warm-up period. And over time, all of this unnecessary strain on your engine can be damaging.” ...

Q: I have a 1979 Jeep CJ-7 with a 5-liter V-8 engine. The ignition switch is the type commonly used in vehicles of this vintage, and it's located on the steering column. It has an "accessory-only" ...