500SEC (140.070) V8-5.0L (119.970) (1993)
Quiescent current retention unit
disconnect, connect.
Ground cable at battery
disconnect, connect.
Connector (1)
unplug, plug in.
Screws (2)
unscrew, screw in.
Amplifier left/right speaker control module (N40/3)
remove from mounting, insert.
Commercially available tester
Quiescent current retention unit
e.g. Hans Zeheter CMP 12.2