Thank you for contacting Audiovox Customer Support.
If you are looking for information on the actual System in your vehicle please be advised the APS2K4SAW is NOT the System Model Number it is a transmitter - Please see FAQ/ANSWER 225262167 for tips on locating your model number.
PROGRAMMING INSTRUCTIONS FOR THE APS24KSAW:
The APS2K4SAW transmitter, has been discontinued however the replacement transmitters would be OR APS2K4SBCF52 should you need a new transmitter and know the Brand and Model Number of your Transmitter or Security System you can visit the Audiovox Web Store to buy a replacement transmitter - TO VISIT THE STORE - CLICK HERE
Otherwise contact our Customer Service department via the Ask A Question tab above for more help.