Raido i have power, just no sound coming from speakers

the antenna motor wires to read or radio to pin marked antenna power.

The thumbing noise is an out put if you hear it over the speakers.
So that means the problem is with a CD or cessette player that you must have that will not pop back to the raido mode

Since the VIDEO (Picture) and Audio (sound) are Two separate and distinct functions (although they work in concert with one another) you can have either sound with a picture or visa-verse. If the audio is self-contained, meaning sound comes from internal speakers within the Monitor, then the problem can be a defective Audio section or short on the circuit board.
If the Speakers are the Honda sound system, then there could be a disconnect between the Monitor and the Honda sound system.

If you have an extra speaker lying around you could wire it in by unplugging one speaker and seeing if it works. You have a fuse on passenger side fuse box for the amplifier. Check to see if its blown. A thumbs up would be greatly appreciated if this answer is helpful to you.

Hi Jeff,

i think your radio has power problem.
please check the radio fuse on fuse board if its good please ask for repair electronics technician to fix power problem of your radio.
it can be the failure of sound output cct or power regulater cct .

regards,
nuwan

if this is while the raido is on the specker is blowen you can get a replacement specker at Raido Shack or Wall-Mart cheapest two placeses

Check whether you do have a problem to your speakers,either loose wire,broken wire,or speakers failure.

2002 GMC Envoy Car Stereo Wiring Chart
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: The radio harness does not provide a switched power source. Run a wire to the fusebox or ignition switch harness for switched power.
Car Radio Ground Wire: Black/White
Car Radio Illumination Wire: N/A
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue

set it to radio or put in a cd and put it on cd mode and try playing if there is no sound then check radio fuse in the fuse box to see if th eamp fuse is blown.

2000 Ford Crown Victoria Car Radio Stereo Wiring Diagram
Car Radio Battery Constant 12v+ Wire: Violet/Light Blue
Car Radio Accessory Switched 12v+ Wire: Yellow/Black
Car Radio Ground Wire: Black/Light Green
Car Radio Illumination Wire: Light Blue/Red
Car Stereo Antenna Trigger: Blue
Left Front Speaker Positive Wire (+): Orange/Light Green
Left Front Speaker Negative Wire (-): Light Blue/White
Right Front Speaker Positive Wire (+): White/Light Green
Right Front Speaker Negative Wire (-): Dark Green/Orange
Left Rear Speaker Positive Wire (+): Gray/Light Blue
Left Rear Speaker Negative Wire (-): Tan/Yellow
Right Rear Speaker Positive Wire (+): Orange/Red
Right Rear Speaker Negative Wire (-): Brown/Pink