[Gezepi] wanted to add an auxiliary input to the stereo in his 1994 Camry. At first look there wasn’t an easy way to patch into the system. But a bit of probing with an oscilloscope and figured out ...
In an effort to record system audio on a laptop with no system output in my Recording Control, I decided to try plugging a short male-male mini cable from my headphone output to my mic input.