Hi

So I have this strat with passive single coil pickups and I expect them to be a little buzzier than my active pickups on my other strat. I plugged it in to my USB port like I always do and there is this MASSIVE amount of static/buzz. I figured it was just the passive pickups reacting to the computer's electromagnetic field etc

Then I tried it on my amp and it is doing the same thing. I have tried touching all the metal pieces on the strat and listening to when the buzzing is loudest. As soon as I touch the output jack area of the guitar, the buzz intensifies dramatically. This buzz happens even when on a clean channel on the amp.

I don't know a lot about electronics but it seems to me that the metal plate that the output jack is attached to hasn't been earthed.. but I don't know enough to know what to do to make sure it is that, and then to fix it.

Any help is appreciated.