But when I try to measure voltage through GROUND and TX- I have 2,5V on idle and 2,4 when pressing one button...
But with TX+ I get 0,6V without a change!!!
I don't want to pay $120 to get new steering wheel controls IN CASE mine don't work anymore!!!
I suppose the only solution is to try from a friend's controls!!!!
THANK YOU for ALL the help!!!!