• Mustang Forums
  • Mustang Sound & Shine All

Premium OEM CD in Premium Stereo Fox

  • Thread starter Thread starter 90limited
  • Start date Start date Mar 25, 2009

90limited

Founding Member
Apr 13, 2002
276
3
18
Port Charlotte FL
Mar 25, 2009
#1
  • Mar 25, 2009
  • #1
I know that I could get a better CD head unit than factory, but I wanted the 7up car to look stock... That said, the electric side of things was a breeze (plug and play). The downside is I cannot figure out how to wire the speakers. My 1990 has 5 wires going to the amp from the head unit out of the long black eight pins in a row plug on the car harness. The 1996 CD head unit (F4TF-18C815-AC) uses the more squarish plug that is two rows of four.

Both the factory unit that came in the car and the CD unit are premium (need an amp). Anybody have any ideas.
 

90limited

Founding Member
Apr 13, 2002
276
3
18
Port Charlotte FL
Mar 25, 2009
#2
  • Mar 25, 2009
  • #2
OK more info... the newer cd head unit has a line level out for four speakers +- to the amp, which is 8 wires. The amp in the 1990 car has five wires, a common ground and 4 other wires for the individual channels. Can I connect one or all of the grounds from the head unit to the one ground input on the amp?
 

2BADSTANGS

Member
Jun 19, 2008
385
1
18
Colorado
Mar 28, 2009
#3
  • Mar 28, 2009
  • #3
The simple answer is yes, you can. However you need to be sure that the original had a line level output and not a speaker level output. It will not hurt anything to plug the new sterio in to test it, you will just barely hear any sound if the original was speaker level. If that dosn't work, get an amp and harness out of a '93 premium sound car (some other years may have them, but I am sure the '93's did.). They use the square amp feed plug. I have the whole amp/ wiring setup if you need one.
 
You must log in or register to reply here.

Similar threads

S
Stereo snakes nest; what am I missing?
  • Scott_S
  • Aug 29, 2025
  • Mustang Sound & Shine All
Replies
3
Views
362
Mustang Sound & Shine All Sep 24, 2025
Scott_S
S
Run a 5 channel or use head unit and mono amp for sub?
  • 2000xp8
  • Sep 20, 2024
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
7
Views
2K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Sep 23, 2024
2000xp8
T
Need advice: 93 Cobra audio upgrade with no permanent modifications
  • THNX SVT
  • Feb 18, 2024
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
7
Views
2K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Feb 20, 2024
TIGGER
M
Fox stereo speaker wiring
  • modeladdict
  • Oct 27, 2022
  • Fox 5.0 Mustang Tech
Replies
6
Views
5K
Fox 5.0 Mustang Tech Nov 16, 2022
TIGGER
For Sale 3-owner 1987 Mustang GT, $18K obro, Lancaster CA
  • Bill Cool
  • Oct 6, 2024
  • Fox Body Mustangs For Sale (1979-93)
Replies
4
Views
2K
Fox Body Mustangs For Sale (1979-93) Oct 13, 2024
nickyb
Share:
Bluesky Email Share Link
  • Mustang Forums
  • Mustang Sound & Shine All
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?