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Car Audio Help
Wiring, Electrical & Installation
Wiring SPDT On-Off-On with Relays
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<blockquote data-quote="keep_hope_alive" data-source="post: 8669226" data-attributes="member: 576029"><p>You can wire the Radio through one switch leg and the Radio, USB, and LED through the other switch leg. A On-Off-On switch has a center common for the hot conductor. Then you'll have the Radio power to both positions one and two. USB and LED will only be wired to position two. </p><p></p><p>You could also use relays. You can dedicate one relay to Radio with a second relay powering Radio, USB, and LED. In that configuration the On-Off-On switch would power the relay coils. This allows you to use a smaller toggle switch since it won't see the current of the load.</p></blockquote><p></p>
[QUOTE="keep_hope_alive, post: 8669226, member: 576029"] You can wire the Radio through one switch leg and the Radio, USB, and LED through the other switch leg. A On-Off-On switch has a center common for the hot conductor. Then you'll have the Radio power to both positions one and two. USB and LED will only be wired to position two. You could also use relays. You can dedicate one relay to Radio with a second relay powering Radio, USB, and LED. In that configuration the On-Off-On switch would power the relay coils. This allows you to use a smaller toggle switch since it won't see the current of the load. [/QUOTE]
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Wiring SPDT On-Off-On with Relays
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