just found this on ebay:
http://www.ebay.co.uk/itm/New-Universal-Automatic-Headlight-Sensor-Coming-Leaving-Home-Light-sensor-Kit-/400439215301?pt=UK_Car_Accessories_Safety_Security&hash=item5d3c0984c5
it seems to do the same, however also includes a auto sensor thing to turn ur lights on when it gets dark...i wouldnt want this feature but might be tempted to try it just for the lights on delay when the engine is switched off/unlocked.
http://www.ebay.co.uk/itm/New-Universal-Automatic-Headlight-Sensor-Coming-Leaving-Home-Light-sensor-Kit-/400439215301?pt=UK_Car_Accessories_Safety_Security&hash=item5d3c0984c5
it seems to do the same, however also includes a auto sensor thing to turn ur lights on when it gets dark...i wouldnt want this feature but might be tempted to try it just for the lights on delay when the engine is switched off/unlocked.