It would require a universal module and keychain security remote. Disassemble the keychain and find the two contacts for the Arm button and solder wire to the contacts. Then attach the wire to the universal (set to House/Unit code desired) and set the universal to "momentary contact" and "relay only". If you had Logmein or a similar program on your PC and AHP, you could Arm the PS561. Obviously without a PC and AHP this is not possible. Although you could trigger the House/Unit code above (with a normal remote) and arm the system, Goldberg wouldn't be impressed.