Yep, when the car is shut and locked, if you lift the drivers door handle you hear a short 'beep' from inside the cabin area! If you hold the handle for about 10 secs (with the key on), the car emits a long 'beep' from inside the cabin! I presume it's part of the keyless entry system, but as I brought the car secondhand, I dont have a manual or even a keyless remote....
Can anybody tell me what exactly is happening here and how I can use it?