Yamaha RBX Jazz Ground Issue

[Pink3ByFloyd]

Hi, I'm very new to this site and I have this is issue where my RBX Yamaha jazz pickup is having allot of ground issues. I went through allot of repairs by replacing the pickup, to different wirings diagrams and even replacing all 3 original pots, yet I still have the same issue. When the ground and hot wires are soldered, the noise continues. When I tried using my multi meter contacting both wires, the noise goes away. Only the bridge pickup doesn't seem affected nor the tone. Here are some pictures of the bass and wiring diagrams I've tried. Thank you