Applicable toIf the original rear camera cable of your dash cam is short, please choose our extended 2.5mm to 4 pin dash cam cable. Pure Copper Thicker Shield Dash Cam CableWe use pure copper with a diameter of 3.5mm thick wire (most of the original rear view camera cables are 2.8mm). Due to the excessive extension, we must use thick wire with a shielding layer to reduce signal loss, otherwise the video clarity will be reduced. With Trigger WireThis 4 pin camera cable with trigger wire should be connected to the backup light to get power, if connect, the dash cam will display the rear view image on full screen when put into reverse, if no need to display full screen , then no need to connect the red wire. NoteThis is 2.5mm to 4pin rearview camera cord, please check whether the rear camera of dash cam mirror cam is 4 pin or 5 pin before purchasing. We are a professional company of production dash cam accessories cable, if you need other configuration cables of diffe