Wireless control of trailer board lights

Is there a (Bluetooth?) OBD module that can transmit to a receiver that remote controls a car trailer board lights ?
I have seen the magnetic bluetooth "stick on lights" that are powered by internal rechargeable battery and claim a 20 meter signal range from a bluetooth paired transmitter plugged in to the car’s existing wired 7 pin car trailer socket.
What would be useful is if the above transmitter derived its signals whilst plugged into a car’s OBD port.Such a device would eliminate splicing into the wiring loom as necessary for a conventional hook up.
In short are the side lights/ brake/indicator/and license plate illumination signals incorporated in the OBD ?