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I plan on doing a sub install eventually....thanks for the info. Instead of a LVT, you can use an automotive grade relay that can be purchased for < $2. Tie the + of the coil to the ignition wire (or something else that is on when you plug in your key...lighter socket should work), - to ground. SPDT (single pole double throw) should be fine. That is assuming the enable for you amp just requires a logic level high of a given voltage. Make sure the enable doesn’t draw more than the relay spec. I can almost guarantee you that LVT is a relay in a box with a resistor and a LED. Also, make sure your amp can handle 12V enable. It is also a good idea to solder instead of using crimps or screw-ons....wouldnt want to disable your amp from a sudden bump.
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