Im looking at a voltage meter, but it doesnt have a remote turn-on sensor wire. More specifically, Im looking into this http://www.sureelectronics.net/goods.php?id=1055
The volt meter only has a positive and negative input, and I want the meter to switch on and off with my HU. Ive been looking up relay wiring and think I found a solution. I just want either a confirmation or for someone to correct it. If you dont know, then dont post
30 = To 12v input of amp
85 = To negative battery post
86 = To remote turn on
87 = To voltage meter
87a = Not used
From my understanding, when pin 86 gets power, pin 30 and 87 get connected.