Factory Radio Gets Loud
for a sec or so. Any ideas?
Race Director
Joined: Apr 2000
Posts: 15,344
Likes: 4,008
From: Texas
There are typically three reasons...
- The "Speed Compensated Volume" (SCV) is failing within the radio itself. This requires the head unit to be rebuilt
- The Vehicle Speed Sensor (which is what the SCV function is keyed to) is failing. Typically you will see your speedometer do some odd things if the VSS is failing (ie the digits are slow to respond, incorrect speed readings, etc).
- Electrical connector/wiring issue
Thread Starter
Instructor
Joined: Jul 2004
Posts: 228
Likes: 1
From: Oakwood GA
I'm assuming you have a later C4, putting the year and engine type in the post is helpful.
There are typically three reasons...
- The "Speed Compensated Volume" (SCV) is failing within the radio itself. This requires the head unit to be rebuilt
- The Vehicle Speed Sensor (which is what the SCV function is keyed to) is failing. Typically you will see your speedometer do some odd things if the VSS is failing (ie the digits are slow to respond, incorrect speed readings, etc).
- Electrical connector/wiring issue
There are typically three reasons...
- The "Speed Compensated Volume" (SCV) is failing within the radio itself. This requires the head unit to be rebuilt
- The Vehicle Speed Sensor (which is what the SCV function is keyed to) is failing. Typically you will see your speedometer do some odd things if the VSS is failing (ie the digits are slow to respond, incorrect speed readings, etc).
- Electrical connector/wiring issue
