Quick question about hooking up a wideband to my V1 unit. It's an AEM wideband with a white wire for 0-5V analog output. This wire will go to either Pin C (EXT.AD2) or Pin E (EXT.AD1). But do I need to hook anything to Pin D the common ground? If I do need to, would I just hook it to the same ground that I'm using to feed the gauge?
Thanks