I just wired up a Aggie OBP-3 preamp... now I'm getting radio signals. Besides the use of shielding (currently it doesn't have any), is there any way to wire it so that I don't get the radio signals. It just happens when I touch the "treble" & "mid" knobs also the mid selector switch, ... not on the "bass" and not on the volume pots either (well that I can hear). When I touch the treble, mid and switch... the station comes in loud and clear. BTW... the station sucks... too much chat. I'm gonna try another cable to see it that's it too.