Ford Taurus SHO JBL Radio Wiring Diagram (No CD): Amplifier & Subwoofer 130-8

This document is page 130-8 of a Ford factory wiring diagram titled "Radio, JBL System Without CD Player." It shows the JBL Audio System Amplifier with its connectors C453 and C454, including pin numbers, circuit numbers, and wire colors for all four speaker-level inputs (LF, RF, LR, RR, circuits 277-280 and 855-859) and amplified speaker outputs (circuits 803-813 with colors such as LB/W, O/LG, DG/O, W/LG, DB/O, PK/LG, PK/LB, and BR/PK), which continue to the speakers on page 130-9. Power comes from a 40A fuse in the engine compartment fuse box (hot at all times, see Power Distribution page 13-3) on circuit 37 (Yellow), passing through connectors C213, splice S405, and C450, then through a radio choke to the Subwoofer Amplifier via C462. The Subwoofer Amplifier receives AUDIO (+), AUDIO (-), and MUTE signals through C463 and drives the Subwoofer Assembly through C464 (BK and BK/W wires), grounded at G404. The main amplifier is grounded on circuit 694 (Red) through C454 to ground G403. A logic mute input (circuit 689, DB) is also shown. Readers can trace speaker wiring, power feed, and grounds for troubleshooting the JBL premium audio system.