Behind the panel on the right hand side in the cargo area.
The older radios are easy to remove. Pull the knobs off the front and there's nuts benind them. It should take a 9/16th deep barrell socket to remove them. There may be a bracket on the back of the radio in the dash. After that, pull it out from the rear and unplug the wires. That's it.
ok first thing you need to do is go to a radio store and buy the right plug that is made for your truck.they will tell you there what plug you will need,and everything else is easy from their wires should be color coded then it will be easy to install.
you must remove the dash panel that goes over the stereo, heater and around the gauges then all you have to do is pull it out just by pressing two tabs on each side of the stereo
It is probably the output amplifier chip.
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To replace a broken radio antenna on a 2004 GMC Envoy you need to unscrew the old antenna. Next, place the new antenna in the hole and screw into place.
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To replace the radio in a 2004 GMC Envoy, start by disconnecting the negative battery terminal to ensure safety. Remove the trim panel around the radio by gently prying it off with a flat tool. Unscrew the mounting screws holding the radio in place, then disconnect the wiring harness and antenna cable. Finally, connect the new radio, secure it with screws, and replace the trim panel before reconnecting the battery.
To reset the service engine soon light on a 2004 GMC Envoy you can remove the ECU fuse. ECU stands for electronic control unit.
Behind the panel on the right hand side in the cargo area.
To reset the radio in a 2004 GMC Envoy, you can try disconnecting the car's battery for a few minutes and then reconnecting it. This action may reset the radio system and allow you to input a new code if necessary. Another option is to check the owner's manual for specific instructions on resetting the radio or contact a GMC dealership for assistance.
The AC recharge port on a 2004 GMC envoy is on the low pressure connection. It is the larger of two hoses near the firewall.
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In a 2004 GMC Envoy XL, the fuse for the radio is located in the fuse box under the dashboard on the driver's side. You can find the fuse box by opening the driver’s door and looking to the left of the steering column. The specific fuse for the radio is usually labeled as "RADIO" or "AUDIO" in the fuse diagram, which can be found on the cover of the fuse box. Always consult the owner's manual for precise details and fuse ratings.