01' Ford Expedition: Audio from VHS through radio?

Question edited for clarity and mis-spelling of model name.
Question moved to model category.

1999 Ford Expedition Car Stereo Wire Colors and Locations

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1999 Ford Expedition Stereo Wiring ; Right Front (-), White/Orange ; Rear Speakers, 6" x 8" Rear Doors ; Left Rear (+), Light Blue/Black ; Left Rear (-), Yellow.

1999 Ford Expedition Car Audio Wiring Diagram

https://www.modifiedlife.com > 1999-ford-expedition-c...
Mar 2, 2011 - Our 1999 Ford Expedition radio wiring diagram shows you all the radio wire colors and what they do. Table of Contents. 1999 Ford Expedition ...

no radio told at all is it OEM Ford ? or aftermarket RAD.
doing what, ?what is he source of SOUNDS.
AM/FM /SAT, USB +mp3, BT or what?, some have cell phone 3.5mm jack inputs. and more.
no radio told so tests are crazy hard to tell.
is AM dead. or not. is antenna missing, or broken.

Do you have base or up;level system ?

Table 1: Radio Features
Table 2: Cassette Features
Table 3: Compact Disc Features
Table 4: XM Advisory Messages
The radio receives power from the RADIO fuse in the junction block-right I/P. Ground is provided via G201 and G202. The radio is enabled/disabled by class 2 messages from the body control module (BCM). The radio routes audio signals from the digital radio receiver or the vehicle communication interface module (VCIM) to the speakers and/or amplifier when directed by class 2 messages.
The Entertainment System on this vehicle is configured with an AM/FM stereo radio with the radio data system (RDS) and either a cassette player or a CD player or both. CD and cassette. The uplevel system provides the customer with extended range speakers and an audio amplifier. Satellite digital radio (U2K) is available with uplevel systems.
The following list shows the radios available for this vehicle:
• Radio (ULO) - AM/FM Stereo, Cassette with RDS
• Radio (UNO) - AM/FM Stereo, CD and RDS
• Radio (UPO) - AM/FM Stereo, Cassette with CD and RDS .The complexity of the radio systems on these vehicle is mind blowing .

Your best bet take it to a GM dealer , has features you are unawear of .
DTC B1025, B1035, B1045, or B1055
When the radio is powered up, the radio supplies low level audio signals to the speakers. If the vehicle is equipped with an audio amplifier, the amplifier will boost the signal sent to the speakers.
DTC B1025 Audio Output Circuit
Install a scan tool.
Turn ON the ignition, with the engine OFF.
With the scan tool, monitor the DTC Information for DTC B1025.
Does the scan tool indicate that DTC B1025 is current?

Most likely, the "RADIO" fuse (as marked on the fuse panel). It is usually a 15A fuse.

need to wire the power wire for the amplifier to the remote wire on the aftermarket radio usually a blue wire on the after market radio

I too ran into this problem when battery was removed and re-installed, the radio would power on but no audio. Called Ford dealership and they said they would have to flash the computer at a fee of $95.00 for it to work again. Fortunately my teen aged son who has been at school learning about today's cars said that in most cases removing the negative battery lead for 10 mins and reconnecting will also reset computer. Sure enough it worked and saved me some big coin.

1997 Ford Expedition Car Radio Wiring Diagram
Car Radio Battery Constant 12v+ Wire: White/Purple
Car Radio Accessory Switched 12v+ Wire: Black/Pink
Car Radio Ground Wire: Black/Green
Car Radio Illumination Wire: Blue/Black
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: Blue
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: 6′ x 8′
Car Audio Front Speakers Location: Doors
Left Front Speaker Positive Wire (+): White/Red
Left Front Speaker Negative Wire (-): Brown
Right Front Speaker Positive Wire (+): Green
Right Front Speaker Negative Wire (-): White/Orange
Car Audio Rear Speakers Size: 6′ x 8′
Car Audio Rear Speakers Location: Rear Doors
Left Rear Speaker Positive Wire (+): Light Blue/Black
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Purple/White
Right Rear Speaker Negative Wire (-): Light Blue

pls rate

I do not need solution anymore. thank you. We will take it to the dealer and they will install the part for us..
thanks.

WELL SOUNDS LIKE AUDIO AMP SECTION IN RADIO IS DEAD... RADIO POWERS REGULAR SPEAKERS.. ALSO SENDS A SMALL SIGNAL TO AN EXTERNAL AMP THAT DRIVES THE SUBWOOFER.. START LOOKING FOR RADIO

yes i agree it sounds like it is overheating. Just pull back the carpet in the trunk on the left hand side. Check all the connections make sure its got a good ground etc.
This unit is where all the power etc comes from for the headunit and speakers.