I plugged these in yesterday, and I just realized I too have the weird radio station interference on them. Really pathetic shielding. Trying to decide if I should buy new cables and ferrite filters like someone else suggested or just return them. By the time I fix these, they might not be a good deal anymore.
Colluphid42I'd say ferrite cores are worth a try for this system. I own it, and also had RFI problems that I almost entirely eliminated using ferrite cores. They're <$3 for a pair on Monoprice and tons of options on Amazon.