Car Power Antenna Wiring Diagram. It shows the components of the circuit as simplified shapes, and the skill and signal connections amongst the devices. The switch determines which one of the 2 are powered.

Follow this representation to quickly install your auto audio system the car stereo wiring diagram makes it very simple to installation a touch screen car stereo. Yes, these two wires should be connected together. Basically the blue wire is the one that sends power to the unit from the radio, if it is an intermittent problem make certain that the head unit is not the problem by testing for voltage coming out consistently, then test the grounding, which is above the antenna in the trunk (there are a bunch of grounds there, you can always add a new ground if you are suspect of that one.