Car Stereos: Auto Stereo Installation, plastic wire harness, phillips screws

Question
Hello.  I bought a '91 S10 that has a JVC KD-S11 installed in the dash.  I can hear alternator/plug firing noise and want to UN-install the unit to check the ground.  I've got good plug wires and resistor plugs, so I don't think that is the problem.  

I have ZERO auto stereo installation experience and I don't want to break anything.  How do I correctly get the unit out of the dash.  It's right where the factory radio was, I believe, right above the ash tray.

Thanks for your time.

Jeff

Answer
Hi Jeff.

STEP 1:
Open the glove box. Locate and remove two(2) phillips screws that secure the right side of the plastic dash panel surrounding the radio.

STEP 2:
Pull out the ashtray to its extended position.
Locate and remove one (1) phillips screw at the bottom left corner under the plastic dash panel.

STEP 3:
Once all 3 screws have been removed, the dash can be pulled away from the radio.
The radio is secured to the dash by plastic brackets attached to the side of the radio.
Locate and remove two (2) 7mm bolt screws that secure these brackets to the dash.

STEP 4:
Pull the radio out of the dash. Unplug the black cable plugged into the rear of the radio. Unplug the plastic wire harness connector from the rear of the radio.
Plastic wire harness note: There will be 1 white or blue connector.

Plug one end of the GM antenna adapter into the black antenna cable in the dash. Plug the other end of the GM antenna adapter into the rear of the new radio.

Make sure all wire connections to the new radio have been completed and plug in any connectors into the rear of the new radio. Slide the radio and kit into the opening in the dash.
Secure the side mounting brackets attached to the installation kit with the same two (2) 7mm bolt screws that originally held in the original GM factory radio.

Reattach the plastic dash panel surrounding the radio.
The installation is now complete.

Good Luck!.

Ed