I was wrong on the price, it was $12. I looked at so many that I forgot how much the one I got was. Above is the link. There are only 2 wires, red and black, I ran to the acc. post at the top of the fusebox. I used black silicone to hold in place but if I were to do it again I would just drill 2 little holes in the speaker grill and use 2 little black machine screws to hold it in.
I just wanted it to be where it would be seen alot without thinking about looking for it and I was not happy with any other place: seemed to block the dash or navi or look really out of place everywhere else.
CERTIFIED IRON BUTT
2008 METALLIC RED
This works for me; same height as my main gauges. It's through the accessory circuit so the reading is the system voltage. My Battery Bug is hooked directly to the battery.
I have a picture in my profile on the 2nd page of the back side wiring to show how it unplugs when removing the Meter Cover.
2007, Dark Red Metallic with NAV & ABS
Michelin Primacy Alpin PA 3 195 55 16
Galaxy Note 4 on Ram X-Grip for weather