Hey i've already read many posts bout amp buzz, n it's caused mainly as i read by the amp not being grounded , but i don`t know what to do.

When i don't play anything i can hear a slight but powerful buzz, like a fan blowing air lol? but when i play things go bad, it's a sandy buzz that goes along the sound of the guitar. Things gets worse when i crank up the gain or when using effects from the amp.

I've read that all the metal parts, from the tuning pegs to the bridge plate are connected. I touch the tuning pegs n nothing happens, but when i touch the pickup selector, the lower part i hear like a frequency buzz or somethin like that..

The guitar is a squier deluxe strat with duncan designed hot rails humbuckers, most amp buzz problems i've found happened mainly on single coil..