Hi Guys,
I am super keen to see how you do this. I have a Golf R (Yes I know it isn't a Tiguan but we are using the same exhaust and valve motors)
I have created a custom button for me gear surround by laser etching a blank. I have retrofit an OEM PCB that has the White backlight (which comes on with the headlights) and Orange light that illuminates when the button is engaged.
I was looking down the adruino route but as my knowledge isn't that great I decided to look for a relay instead.
I have most of the documentation I need but struggling a little with a poor electrical knowledge...
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