This image below is the chassis wiring diagram for the 1949 Oldsmobile 88 Series (without turn signal). The schematic show us components with their connections. Here are several components shown in this chassis wiring diagram; horns, generator, spark plugs & distributor, starting motor, temperature gauge, dome light, fuse, fog lamps, trunk light, stoplight, rear lamps, and many more. Remember to study the wiring diagram before performing any wiring work. Click on image to view it larger in a new tab.