Finally, go back through and double-check all your wiring connections, make sure everything is mounted securely, and ensure the solenoid cables are not binding and the crimps are holding tight. With all a go, you've now got a state-of-the-art keyless entry! You'll notice we didn't include the door poppers--for one, the doors opened sufficiently with the solenoids alone, but mainly because there wasn't room in the rear doorjamb. If you wanted, they could be better utilized in the forward doorjamb.