Cellular Horn Alert Kit (170-0704) Hints and Tips Faxback Doc. # 15560 CAN YOU USE THIS WITH TRANSMOBILE OR TRANSPORTABLE PHONES? Yes. You must use the wiring harness from the 170-1078 to wire directly to the car's battery and then install the horn alert kit per instructions. When using the hardwire method, you will disconnect the molex connector from the transceiver and replace it with the connector from the vehicle's battery. (TLC/all-06/06/95)