Quick dumb questions for a dumb idea.

Use the lighter to engage a solenoid to complete the circuit for the starter solenoid
then you just push in the lighter and start the car with the key as normal. When the lighter is out the starter wont engage.

I'm using my empty cigarette lighter for a USB charger-it also functions as a voltage meter!
61lkv3wduuL._SS135_.jpg
Dual QC3.0 USB Car Charger, Opluz Quickly Charge 4.8A USB Car Socket x2&Waterproof Power Outlet with LED Voltmeter for 12V/24V Car, Boat, Marine, RV, Motorcycle Mobile Build-in 10A Fuse DIY Car Kit
4.8 out of 5 stars(9)
$15.99$15.99