I am attempting to add an aux input to my factory hyundai headunit. The pinout in the back of the headunit supports it. But aux-in was not a option I opted for on my car.
the pins are as follows:
signal left and right are self explanatory, and I am assuming that aux ref stands for aux reference, which would be the common ground wire. However I do not know what "aux det" means.
I think it means aux detect, but if it does, I dont know how to wire it. Does anyone have any insight into how I would use this pin?
My theory is that if it is shorted to ground, then the head unit knows that an aux souce is plugged in. BTW, the stock aux in is a 3.5mm headphone jack.