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Audio activated aux-in splitter
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<blockquote data-quote="Jepalan" data-source="post: 8410350" data-attributes="member: 655519"><p>Search for "audio controlled switch" or "audio controlled relay".</p><p></p><p>I didn't look too closely, but here is an audio controlled relay that might work:</p><p></p><p><a href="https://www.quasarelectronics.co.uk/Item/cebek-pm-11-audio-signal-controlled-relay-switch-module" target="_blank">https://www.quasarelectronics.co.uk/Item/cebek-pm-11-audio-signal-controlled-relay-switch-module</a></p><p></p><p>It is SPDT, so wire it so the CB/HAM activates the relay. Wire the MP3 to the NC contact and the CB/HAM to the NO contact and the AUX in to the common contact. When the CB/HAM has audio it will always switch to itself. Otherwise the MP3 will be selected.</p><p></p><p><img src="https://www.quasarelectronics.co.uk/media/ecom/prodxl/pm-11.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="Jepalan, post: 8410350, member: 655519"] Search for "audio controlled switch" or "audio controlled relay". I didn't look too closely, but here is an audio controlled relay that might work: [URL="https://www.quasarelectronics.co.uk/Item/cebek-pm-11-audio-signal-controlled-relay-switch-module"]https://www.quasarelectronics.co.uk/Item/cebek-pm-11-audio-signal-controlled-relay-switch-module[/URL] It is SPDT, so wire it so the CB/HAM activates the relay. Wire the MP3 to the NC contact and the CB/HAM to the NO contact and the AUX in to the common contact. When the CB/HAM has audio it will always switch to itself. Otherwise the MP3 will be selected. [IMG]https://www.quasarelectronics.co.uk/media/ecom/prodxl/pm-11.jpg[/IMG] [/QUOTE]
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Audio activated aux-in splitter
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