I hooked up my 2 kicker cvr 12's in my car in their original box the other day, the box was too big to fit, but the subwoofers sounded great. So, i just made a new sealed box, it sounds great when playing the radio, but if i play a cd, or plug in my USB flash drive, it buzzes or hums very loud, so loud that I cant hear the music. The subs play the song slightly, but muffled. The subs do play the music louder when i turn the volume up, but the humming doesnt change with the volume. Please help! Ive been working at this all week and its pissing me off now that it only works with the radio, i hate the radio.

The head unit is cheap (Pyle), but seems to work fine, and made NO humming a few days ago with the old box.

http://www.pyleaudio.com/itemdetail.asp?model=PLDBT30U

 

Problem fixed! I had my left rca hooked to video out. Im an idiot lol.

 

I was about to say. Sounds like you had something hooked up wrong. Home audio will do similar stuff.