I was looking for a way to hear both my MP3 player and Beltronics RX-65 detector. Devices were $99 to $350! Went to Radio Shack and got Multimedia Y-Cable adapter (42-2496) and 6 foot extension cable 1/8" plug to 1/8" jack. plugged adapter into player and other male into extension to detector. Plugged ear buds into adapter and works great. I hear detector fine over music and RX-65 has auto-mute. Total cost about $15.
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