noob ’87 crown victoria, head unit

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=117529
Printed Date: May 14, 2025 at 10:44 AM

Topic: noob ’87 crown victoria, head unit

Posted By: mitymerc
Subject: noob ’87 crown victoria, head unit
Date Posted: November 06, 2009 at 9:27 PM

I'm attempting to install a new clarion head unit in my '87 Crown Vic Country Squire. I am replacing the factory digital cassette w/external amp & 6 speakers.

I have a 4 channel floating ground adapter connected as per the schematic/color codes.

I get the hu display, but no sound output.

I scanned the schematics, but they are pdf's & I can't post them.

I did find this.....
https://www.the12volt.com/installbay/forum_posts.asp?tid=56694&KW=crown+vic

I didn't connect the bl/wh wire as I thought that was for an aftermarket amp, could this be the solution?

I don't want to start indescriminately connecting things and make smoke LOL

Thanks in advance

Replies:

Posted By: mitymerc
Date Posted: November 07, 2009 at 5:16 PM

Anybody?

Posted By: scrtcell
Date Posted: November 07, 2009 at 6:30 PM

if i am not mistaken that year car already is set up for floating you need to recheck your wiring,you can use a testlight in that car to check for power and then use a 9 volt battery to check for your speakers

Posted By: i am an idiot
Date Posted: November 07, 2009 at 7:06 PM

1986-89 Ford Crown Victoria Stereo Wiring
Constant 12V+	GREEN/ YELLOW
Switched 12V+	Yellow/Black
Ground	Chassis
Illumination	Blue/Red
Dimmer	n/a
Antenna Trigger	ORANGE / Blue
Antenna	Right Front
Front Speakers	5" Dash
Left Front (+)	ORANGE / Green
Left Front (-)	BLACK/ White
Right Front (+)	WHITE/ Green
Right Front (-)	BLACK/ White
Rear Speakers	6" x 9" Rear Deck
Left Rear (+)	Pink/Green
Left Rear (-)	Pink/Blue
Right Rear (+)	Pink/Blue
Right Rear (-)	GREEN/ Orange

Posted By: mitymerc
Date Posted: November 07, 2009 at 10:37 PM

scrtcell wrote:

if i am not mistaken that year car already is set up for floating you need to recheck your wiring,you can use a testlight in that car to check for power and then use a 9 volt battery to check for your speakers

The stock amp appears to be floating however, the adapter harness from the HU has both + and - wires.....

Use a 9V batt?

Posted By: mitymerc
Date Posted: November 07, 2009 at 10:39 PM

i am an idiot wrote:

...

Thank you, I downloaded this already, It appears to be for the 4 speaker sedan, I have a wagon w/premium sound (6 speakers & external amp)