My Squi3r PJ bass has developed an electrical buzz only when touching the strings. (Also tuners and bridge) I understand this can be from the strings not being grounded. I used my multimeter to check for continuity. With the alligator clip on the bridge, there is continuity to all the ground wires inside the pick guard where they attach to the pots and the jack and the body. Everything checks out. I probably have a faulty component somewhere. The buzz is present when the volume pots are turned down, but louder when they’re up.
The Affinity PJ is a cheap instrument for sure, but it plays pretty well. I’m not opposed to spending a little money to fix it up, but I don’t want to be too heavily invested in it