I'm totally blank when it comes to chassis electric... especially when it comes down to my car. I've been reading articles and all that stuffs regarding grounding electric, and I have an idea what it does, but my problem here:

I'm going to be installing a pair of aux/fog lights onto the car on my own... everything is straight easy, but I still don't know where the grounding wire from the relay should be run to?

Is there a specific part on the car that I connect this wire to? Or do I just connect it to any screw or bolt on the engine block or chassis? Any of this make sense? I know this has nothing to do with audio and alarm system, but I know both has to work with grounding, so I thought I could ask for some help here. Thanx!

 

Any screw/bolt connected to the chasis is a grounding block...