friends car has no metal to ground his HU wire to, we have looked and there it some way down there but it would be impossible to attach, what are our options?
If ur trying to hook up an amp ground wire and its in the trunk( PLENTY OF METAL MAN) if ur amp is under the seat use the seat adjuster metal under the seat. bad thing is if its under ur seat then u might need to take the seat out!! GOOD LUCK
run one all the way back to the battery if you have to, lol. almost any nut or bolt on the car will be a sufficient ground. theres gotta be at least a few nuts and bolts on the car.