Below schematic illustrates the 2001 Volkswagen Passat Radio Circuit Diagram w/o Monsoon Radio.

volkswagen passat radio circuit and wiring diagram

The radio system consists of: antenna amplifier, right rear woofer, right rear tweeter, right front woofer and tweeter, left front woofer and tweeter, left rear tweeter and woofer, CD changer unit, and computer data lines. The woofers produce low audio frequencies while the tweeters produce high audio frequencies (typically from around 2,000 Hz to 20,000 Hz)

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