Turntable picking up RFI

As the title says, my turntable (Fluance RT-82) is picking up RFI. I’m pretty sure it’s the table itself since the problem goes away when I keep the preamp (Fosi Audiobox X2) and speakers (Edifier R1280T) turned on but remove the cords connected to the table. Here’s how I’ve tried to stop it:

• Bought ferrite clamps and placed them at the leads of all RCA cables
• Shielded cords with aluminum foil
• Rerouted/regrounded all wires

I’m unsure where to go from here. Any help is appreciated.

Edit: I’m fairly certain it’s AM RFI. The sound is super distorted in the way that AM usually is and the content seems lame in the way that AM usually is.