Book excerpt: With this new reference manual, author Frank "Choco" Mundy makes it easy for home-based auto enthusiasts to understand auto electronics Cross-reference chapter the novice through the basics of auto electronics, the charging system, starting systems, and ignition systems. There's also a special chapter devoted to rewiring vehicles using either a custom or aftermarket harness. Modern computer-controlled electronic systems are also given in-depth, easy-to; understand coverage, as is multiplexing, the emerging practice of using less wiring to perform more functions.