Re: 08 Grand Cherokee grounding help
Basically any bolt into the body will served as a good ground. Just ground both amps to the same point, and make sure you sand the area to bare metal for a good contact. It all depends on your amp location and nearby bolts. Keep the ground wires under 3 feet which im sure you know. Me, I did a false cargo floor and used a large metal tab that the stock floor clipped under as my ground point, that clip already had a big hole drilled thru it and is welded directly to the metal panning. Good luck.
I love my Jeep :thumbsup: