On most radios there is an additional wire called "keyed power" or "switched power" or something similar. That needs to be connected to the accessories circuit (if you want the radio to turn off when you turn the car off), or to 12v power (if you want the radio to stay on when the key is turned off).
Ground on the engine block.
It is ground by the mounting bolts.
there could be a bad ground for the lights, or there is a short somewhere between your fuse panel and your light
Please ask a complete question if you need an answer.
You don't, you need a three wire to correctly make the connection.
There are many ground wires on this vehicle. The main one being the negative, (Black) battery cable.
power = light green ground = black
If you're asking whether you have to connect the fixture ground to the house ground, you do. The idea is to connect any exposed portion of a metal fixture to ground, keeping anything you would be able to touch from having a hazardous potential on it. The way to do this is to connect the fixture ground (which is connected to the metal chassis) to the building ground (which comes from your electrical panel).
It means to connect it to ground (earth).
The 1998 Buick LeSabre custom sedan has a curb weight of 3,443 pounds. It has a wheel base of 110.8 inches and a ground clearance of 5.5 inches.
The ground clearance of the 2010 Ford Transit-Connect is 0 ft. 7.9 in. (7.9 in.).
The ground clearance of the 2012 Ford Transit-Connect is 0 ft. 7.2 in. (7.2 in.).