Car Stereo Wiring Diagrams Director The car stereo wiring and security diagrams director was designed to better help the do-it-yourself installer choose what product is best for your application. The director is spilt up into three wiring diagram types: Product #1. Basic factory car stereo and What Does A Car Amplifier Do? A Detailed Guide For You Jun 09, 2018A simplified diagram showing the basic sections of a car amplifier and how it works. There’s a lot more to it, but the basics are pretty simple. A small, very low-level signal is input from a stereo and amplified to a much bigger – but identical – electrical waveform. Ray's Chevy Restoration Site -- Chevrolet Radio Information Here is a good source for 8 - 10Ω speakers in the correct sizes to fit most older vehicles: S & M Electro-Tech Classic Car Speakers. Stereo Separation: Stereo channels are typically separated left and right. However, some vehicles have one stereo channel feeding the front speaker and the other channel feeding the rear speaker.