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2004 Roush - Dome Lights and radio not working

  • Thread starter Thread starter Yurei
  • Start date Start date Nov 10, 2025
  • Tags Tags
    electrical problems
Y

Yurei

New Member
Nov 10, 2025
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Nov 10, 2025
#1
  • Nov 10, 2025
  • #1
Hey guys. Im new to this whole forum thing but am happy to have joined and am interested in being apart of it. I have an 04 roush mustang that Im currently having a small issue with.. right now my radio wont turn on and the dome lights attached to the rear view dont work. As well as the trunk lights. Ive already replaced all fuses relating to these items but they still dont work. Everything on the dash works fine and no other electrical issue exist. In doing some research im starting to think it may be that I need to replace the g.e.m but other things it controls works fine. If anyone knows what may be the source or what I should check next let me know. Unfortunately im going to be out of town for a bit and wont immediately be able to work on suggestions given. But want to get an idea as to how to tackle this once im back.
 

AeroCoupe

lube between the nut and the face. I know my lubes
Founding Member
Oct 28, 2001
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Claremore, OK
Nov 11, 2025
#2
  • Nov 11, 2025
  • #2
Burnt out bulbs, bad grounds, and check the connection of the wiring on the back of the radio. Also, does the cigarette lighter fuse also power the radio? I know they did this on the older Mustangs.
 
Y

Yurei

New Member
Nov 10, 2025
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Colorado
Nov 11, 2025
#3
  • Nov 11, 2025
  • #3
AeroCoupe said:
Burnt out bulbs, bad grounds, and check the connection of the wiring on the back of the radio. Also, does the cigarette lighter fuse also power the radio? I know they did this on the older Mustangs.
Click to expand...
The cigarette lighter has its own fuse seperate from the radio. Ill have to check the wiring on the back of the radio. Should I use a multimeter to check if the connection harness is getting power to the radio?
 

AeroCoupe

lube between the nut and the face. I know my lubes
Founding Member
Oct 28, 2001
6,164
4,259
183
Claremore, OK
Nov 11, 2025
#4
  • Nov 11, 2025
  • #4
That or a test light.
 

AeroCoupe

lube between the nut and the face. I know my lubes
Founding Member
Oct 28, 2001
6,164
4,259
183
Claremore, OK
Nov 11, 2025
#5
  • Nov 11, 2025
  • #5
I’m not terribly familiar with the 96 and up cars so I’m moving this to that forum.
 
Y

Yurei

New Member
Nov 10, 2025
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Colorado
Nov 12, 2025
#6
  • Nov 12, 2025
  • #6
Ok thank you. Ill have to give this a test and go from there.
 

squeak93

15 Year Member
Jun 2, 2005
2,332
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164
Joplin, Missouri
Nov 17, 2025
#7
  • Nov 17, 2025
  • #7
Dome lights on rear view mirror- I'm assuming this is a convertible right?

Radio issues, factory CD-6 radio still, mach 460/1000 etc?
 
Y

Yurei

New Member
Nov 10, 2025
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1
Colorado
Nov 17, 2025
#8
  • Nov 17, 2025
  • #8
Yes it is a convertible. Has a pioneer radio
 

squeak93

15 Year Member
Jun 2, 2005
2,332
409
164
Joplin, Missouri
Nov 20, 2025
#9
  • Nov 20, 2025
  • #9
Time to start probing wires/connectors for power. Hopefully the radio was installed with correct connectors and not cut/spliced.
 
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