So I'm wanting to install these VDO Viewline gauges I just got.
Pin 1 - Term. 30 - battery 12/24 V
Pin 2 - Term. 31 - ground
Pin 3 - signal ground
Pin 4 - Term. 15 - ignition plus
Pin 5 - sensor signal
Pin 6 - Term. 58 - lighting
Where would I ground pin 3, signal ground, to? Pin 6 goes to...