Quote:
Originally Posted by sharpsicle
Good read, that makes sense!
In that case, just follow what I posted above, make sure you have the proper pin momentary switches (the link you put up earlier looks good), and you'll be good to go. Just keep in mind you'll need to use completely separate grounds for the radio signal common pin and the LED if you integrate it with the dimmer switch, as that switch will change your resistance and would mess with the radio signals if you combined them.
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Yep. My thought was 2 pins to do power and ground for the leds. 2 normally open pins do the switching on of the different resistors.
While you might leach 12v off the switch positive to light the led for a powered circuit, you wouldn’t want that in this case.
Seems most illuminated buttons have this ability.
Ie this one:
Quentacy Momentary Push Button Switch 1NO1NC Waterproof Silver Stainless Steel Shell 12V LED Ring Illuminated Switch Wire Socket Plug Suitable 19mm 3/4 Mounting Hole (Red)
https://www.amazon.com/dp/B075Q9QSX4..._9yq2Bb0Q442YS
I would just ignore the NC lead I believe.
So I think, find the ground in the dash dimmer switch, and use that as my led negative. Use The radio’s illumination wire as my led positive. That should in theory make the leds light up and hopefully dim with the instruments. Then wire up my separate wires with the required resistors to make the buttons send the commands to the radio pins.
I’ll test it all first but I think this just might work.