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1999 Mercury Mountaineer OEM Audio System

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=23337
Printed Date: July 21, 2025 at 8:04 PM


Topic: 1999 Mercury Mountaineer OEM Audio System

Posted By: MajesticDre
Subject: 1999 Mercury Mountaineer OEM Audio System
Date Posted: December 25, 2003 at 3:47 PM

I just bought a 1999 Mercury mountaineer and the OEM head unit display does not come on, I cannot adjust the Bass and Treble, and the sub woofer does not come on. When I took it down, I found a High/Low impedance adaptor, wires that where spliced incorrectly, and after further examination, I found the remnants of (mostly 10AWG wire) an aftermarket amp and sub system. What I want to do is rewire everything behind the head unit before spending $400 on a new OEM head unit and having to replace it repeatedly, because of bad wiring. Therefore, does anyone have a complete diagram of the audio system? I think it is the Mach premium audio system. It has a 6-disc CD changer and rear passenger audio controls on the back of the center consol/arm rest. Does anyone have it?

Complete diagram for rewiring 1999 Mercury Mountaineer Audio system with: 8" Subwoofer, 6 disc CD Changer and CD Tape AM FM radio head unit

Help will be greatly appreciated.




Replies:

Posted By: MajesticDre
Date Posted: December 25, 2003 at 4:23 PM
Oh I failed to mention that I woul also need the OEM pin layout for all 3 harnesses.


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