Blackvue DR590X Dash Camera User Manuals | Bible

Hardwire Cable/Parking Mode 

If you want to use the built in parking mode circuitry (battery cut-off and timer) you MUST buy the CH-3P1 Blackvue hardwire cable (it is NOT included with the DR590X series (1ch or 2ch)

You can also use the Thinkware TWA_SH hardwire cable HOWEVER the plug pin-out is different and MUST be modified or you will fry your DR590X camera. TWA-SH pinout is as per below:

Yellow = GND (ground) 
Red=ACC (accessory or ignition)
Black=CONSTANT (battery power)