A keyless remote typically works by sending a radio signal to a receiver in the car, which then unlocks the doors or starts the engine. For a car with manual door, the receiver is usually installed inside the door handle or in the door jamb. When the keyless remote is within range, the receiver will detect the signal and send a message to the car's electronic control unit (ECU), which will unlock the doors or start the engine.
However, it is important to note that not all cars with manual doors are compatible with keyless remote systems. Some older models may not have the necessary wiring or electronic components to support keyless entry or remote starting. If you are unsure whether your car is compatible with a keyless remote system, you can check the owner's manual or contact your car's manufacturer.
