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Factory Amp Turn On/Off Button

Old 08-31-2018, 02:33 PM
  #1  
08'MustangDude
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Default Factory Amp Turn On/Off Button

I bought four of these buttons, so decided to use one to turn the factory AMP on or off.


Soldered JST connectors on for power and light.



Drilled out the blank button:


Installed Switch:



Installed into the bezel:



Wiring everything up:

I did not want the button light to be bright, so rather than use the +12 from the radio's amp lead, I am using the +5
out result from the resister, so the light is dim, and not in your face at night.

Drilled and tapped in a ground screw for the button's LED:



Radio on, AMP on test:


Radio on, Amp Off:


Radio on, AMP on:


All done:


One side effect from wiring the LED to the +5 after the resister is; when there are hard bass hits,
at full volume, the light pulses after the hit. If I back the volume off -2, it doesn't do it. I know
why it does it, just didn't expect it.

Last edited by 08'MustangDude; 08-31-2018 at 02:37 PM.
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Old 09-03-2018, 01:47 AM
  #2  
08'MustangDude
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The side effect of hooking the LED power after the resister, was that it pules with
bass when the radio is at full volume.

I do know why it pulses. If you want to prevent it, install a diode after the resister,
then the wire the LED behind the diode. Then the factory amp lead to the diode.
The diode will block the surges.




Last edited by 08'MustangDude; 09-09-2018 at 03:00 PM.
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Old 10-08-2018, 05:04 AM
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08'MustangDude
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IF YOU WANT STABLE 5V OUTPUT FOR THE AMP(S) TURN ON:






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