Only static heard coming out of the speakers

Sounds like either the speakers are shot, missing or not hooked up.

Not the Radio. \Static is a result of a short. Could be a speaker wire, insulation or bared surface. Connection not good, or even the radio antenna out of phase.

Antennae wire and other wires for the stock stereo are listed below:
1995 Buick LeSabre Stock Radio Wiring Diagram
Car Radio Constant 12V+ Wire: Orange
Car Radio Ignition Switched 12V+ Wire: Yellow
Car Radio Ground Wire: Black/White
Stereo Radio Illumination Wire: Gray/Black
Stereo Radio Dimmer Wire: Brown/White
Stereo Radio Antenna Trigger Wire: Dark Green
Stereo Radio Amplifier Trigger Wire: N/A
Front Speakers Size: 5 1/4? Speakers
Front Speakers Location: Doors
Left Front Speaker Wire (+): Tan
Left Front Speaker Wire (-): Gray
Right Front Speaker Wire (+): Light Green
Right Front Speaker Wire (-): Dark Green
Rear Speakers Size: 6? x 9? Speakers
Rear Speakers Location: Rear Deck
Left Rear Speaker Wire (+): Brown
Left Rear Speaker Wire (-): Yellow
Right Rear Speaker Wire (+): Dark Blue
Right Rear Speaker Wire (-): Light Blue

I GUESS that the speakers are driven by an after market amplifier. An amplifier needs to be connected to a power source that is only on when the radio is on, through a relay.

So I GUESS that:

1. The wiring is incorrect. Or
2. If is has a relay, the relay is stuck.

are all the radio function dead.?????
what are they, radio, AM and FM dead, cassette, CD,?
if only the radio is dead. (static) then the antenna is bad or its lead in coax wire is bad. or fell off. etc.
the amp (audio is good) as you heard the static.
you can unplug the antenna, wire, from radio and plug in any
lenght of wire to test the radio, any radio can be bench tested this way. and is in any shop.

its very rare today for any head end radio unit to be only a radio.
so do the other features (other audio sources work?) try them.
if they work then the antenna is bad.

After I read this whole post and the solution by other guy. I came to my own conclusion is that you may have an exposed wiring that causes the static sound out of speakers. Try to look for bare wiring that may have touch each other as well as touching the metal of the vehicle. Try to disconnect the wires at the speaker, and see if it works. If it does works, then you know that you have wiring issue there.

Is the radio powering up?
Have you tested the continuity to the speakers (disconnect speakers and use multimeter on low ohms across speaker wires, you might also hear a crackle if speakers are ok)?
If you dont have a meter use a small preferrably used battery (take one out of the tv remote) and dab across the speaker wires briefly, you should hear a click from the speaker.Make sure the speaker is disconnected from the radio when you do this!
Have you connected the ground?
Did the the radio ever work?
Have you connected the antenna?
have you tried any old small speaker hooked up to the radio output?
Ahhh questions questions....

I took my time to find this for u please show your thanks with a "FIXYA" rating.

2009 Ford Ranger Car Stereo Installation Guide
Car Radio Battery Constant 12v+ Wire: Violet/Red
Car Radio Accessory Switched 12v+ Wire: White/Red
Car Radio Ground Wire: Black/Yellow
Car Radio Illumination Wire: Blue/White
Car Stereo Dimmer Wire: Green/Red
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 (+): White
Left Front Speaker Negative Wire (-): White/Brown
Right Front Speaker Positive Wire (+): White/Violet
Right Front Speaker Negative Wire (-): White/Orange
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): White/Orange
Left Rear Speaker Negative Wire (-): Brown/Yellow
Right Rear Speaker Positive Wire (+): Brown/White
Right Rear Speaker Negative Wire (-): Brown/Blue

Replace the 37 year old radio, it has retired.

Sounds like either a bad radio, or your speakers have gone bad. Do they sound alright with the CD player? If so, you have eliminated the speakers. They do also have problems with the antenna cables themselves