A while ago I picked up what looks like a Fender Jazz body. Based on markings I'm pretty sure it is. I've been working on this as a project bass. The body did not come with any of the previous wiring or pickups etc. ...just the body. So, Im at a point where I'm ready to install the pups and noticed something odd. There is a small hole in the vacinity of the bridge mouting screw holes, where the groud wire would normally slip under the bridge. So, I assumed that's what it was. I snaked some wire into the hole so I could see where the channel was drilled. To my surprise the hole goes straight down about a half inch and stops! The only hole in the control cavity is for the wire for the two pickups. I'm stumped at this point; has anyone got any idea what is going on here? Has anyone seen this before?