Question about 1984 Mercury Grand Marquis
Am installing new wire in a different car
Pin Number Circuit Circuit Function 1 296 (W/P) Radio Chassis Memory Power 2 57 (BK) Ground 3 294 (W/LB) 12V Power Feed 4 19 (LB/R) Instrument Panel Dimming 5 296 (W/P) LCD Dimming (Crown Victoria/Grand Marquis Only) 6 694 (BK/LG) Ground 7 448 (O/Y) Radio On Output 8 689 (DB) Logic Mute
Posted on Feb 27, 2009
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Posted on Jan 02, 2017
SOURCE: radio wiring diagram needed
This is the only thing I could find, it is from a car audio site, hope it helps.
Car Radio Battery Constant 12v+ Wire: Green/Yellow
Car Radio Accessory Switched 12v+ Wire: Yellow/Black
Car Radio Ground Wire: Chassis
Car Radio Illumination Wire: Blue/Red
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: 5′
Car Audio Front Speakers Location: Dash
Left Front Speaker Positive Wire (+): Orange/Green
Left Front Speaker Negative Wire (-): Black/White
Right Front Speaker Positive Wire (+): White/Green
Right Front Speaker Negative Wire (-): Black/White
Car Audio Rear Speakers Size: 6′ x 9′
Car Audio Rear Speakers Location: Rear Deck
Left Rear Speaker Positive Wire (+): Pink/Green
Left Rear Speaker Negative Wire (-): Pink/Blue
Right Rear Speaker Positive Wire (+): Pink/Blue
Right Rear Speaker Negative Wire (-): Green/Orange
Posted on Aug 29, 2008
For the 4.6L V8:
(back of engine)
(front of engine)
Let me know if this helped...
Posted on Mar 16, 2010
i found out that it grounds when u put it on the car so u dont need to hook anything to the ground connection. the power goes to the bigger connection. the feild is usually the longer wire of the 2 wires that are left. the third goes to the sta spot
Posted on Mar 24, 2010
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