: I've set up an external power supply which allows GDR45 to operate in the absence of engine start power supply. However it doesn't seem to work in parking mode and I'm confused now what the behavior of the parking mode I should expect. What I see now when I turn off the car engine and pull off the car key, GDR45 is still on and keep recording. I have read through the user manual provided which is similar to http://download.garmin.com/sg/download/manuals/GDR45_SG_0A.zip and I have four specific questions: 1.What should I see GDR45 working when I turn off car engine and pull off the car key? 2.In the user manual, where is and What is "Automatic Switch" per what it says "Automatic Switch User may configure whether to activate parked recording mode when the engine is turned off." 3.In the user manual, where is Recording Time Setting per what it says "Recording Time Setting User may set motion-detected recording from any time between 2 hours to continuous, provided that the external battery does not fall below the stop voltage. The unit will stop movement detection and shutdown automatically after the recording exceeds the preset time limit." 4.I can see a menu entry in GDR45 "CLA Off Auto Recording", what is this for and do I need to leave it checked or unchecked?