For Regular Remote Control Transmitter:
1.Prior to pushing any button on the transmitter. Press the Select II button first on the standard transmitter.
2.Once II button is pressed the LED on the transmitter will illuminate for 3.5 seconds. While the LED is illuminated, press the button for the function you want to operate on the standard remote transmitter to control a second vehicle security system.
For 2-way LCD Remote Control Transceiver:
2nd Car Operation: While the “II” icon display on the LCD screen, you can remote control and communicate with a second Autopage AM frequency security system. It has two short “beep” sounds while pressing any button of the LCD screen transceiver
1.Press and hold all four remote control buttons simultaneously unit one long beep is heard. LCD Programming has now been entered.
2.Within 5 seconds press and hold 
button until two beeping sounds are heard and the “II” icon will display on the LCD screen to indicate the second transceiver pin code has been initiated.
3.To exit programming mode, take no action for five seconds. The remote control will generate two long beeps to indicate programming mode has been exited.
Back to first Car Operation:
This will allow you to control and communicate with the first vehicles security system.
1.Press and hold all four remote control buttons simultaneously unit one long beep is heard. Programming has now been entered.
2.Within 5 seconds press and hold 
button until one beep sound is heard.
3.To exit programming mode, take no action for five seconds. The remote control will generate two long beeps to indicate programming mode has been exited.
Vibration / Melody Mode:
Vibration mode is useful when you are in a noisy place and it is difficult to hear the beep sound from the remote control. In this mode the unit will vibrate if your security system is triggered.
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