I can find a plethora of videos and instructions and posts etc. on HOW to plug an iphone/ipod into the AUX input in a Mazda 3. They all say you need a "stero mini plug" or "stereo mini jack" and ...
The circuit diagram shows a low-cost 3-input video MUX cable driver. In this circuit, the amplifier is loaded by the sum of RF and RG of each disabled amplifier. Resistor values have been chosen to ...