RADIO SHACK AUDIO SYSTEM GROUND LOOP ISOLATOR 270-054A w/ RCA coupling &Jack! | eBay
RadioShack Audio System Ground Loop Isolator for Home/Auto, 270-054, NOS! #41467 | Reverb
Amazon.com: Golvery Ground Loop Noise Isolator, Auido Humming Hissing Buzzing Noise Filter Eliminator for Car Audio, Home, PC Stereo System with 3.5mm or RCA Aux Jack : Electronics
RADIOSHACK HOME/AUTOMOTIVE GROUND LOOP ISOLATOR for Sale in Parlin, NJ - OfferUp
Radio Shack Audio System Ground Loop isolator hum noise reducer 270-054 | eBay