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<blockquote data-quote="HardofWhoring" data-source="post: 8853932" data-attributes="member: 674149">You do need to run a power wire.&nbsp; &nbsp; There are two wires that handle power. You have your main power wire that feeds all the current that the load needs that goes to battery/or a 12v source depending on how much is needed.&nbsp; Then there is what you are wanting, which is a switch wire.&nbsp; It&#039;s a very low amount of current that&#039;s only purpose is to signal when to be on, as if it&#039;s a power button.&nbsp;&nbsp; The main power cable is like plugging it in.&nbsp;&nbsp; This smaller wire, is the power button. Aftermarket head units have this as a &quot;remote wire&quot;, or &quot;amp wire&quot; that is blue with a white stripe.&nbsp;&nbsp; Your factory head unit might have this dedicated wire coming out of the back of it.&nbsp;&nbsp; If not your back up option is to connect it to any accessory wire, (a wire that is on when the key is back, on or running.&nbsp;&nbsp; Your head unit would have this wire behind it that you could always tap into.</blockquote>

[QUOTE="HardofWhoring, post: 8853932, member: 674149"] You do need to run a power wire. There are two wires that handle power. You have your main power wire that feeds all the current that the load needs that goes to battery/or a 12v source depending on how much is needed. Then there is what you are wanting, which is a switch wire. It's a very low amount of current that's only purpose is to signal when to be on, as if it's a power button. The main power cable is like plugging it in. This smaller wire, is the power button. Aftermarket head units have this as a "remote wire", or "amp wire" that is blue with a white stripe. Your factory head unit might have this dedicated wire coming out of the back of it. If not your back up option is to connect it to any accessory wire, (a wire that is on when the key is back, on or running. Your head unit would have this wire behind it that you could always tap into. [/QUOTE]

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