2002 Hyundai Sante Fe 2.7 cd/cassette/am/fm

cd player is gone most likely

They sell a variety of replacement clamps or terminals, unbolt it,cut it off, expose a 1/2" or so wire and connect it to the replacement terminal, and install back to battery. Like 5 bucks and a couple tools.

facing the engine when you open he hood they are on the front right hand side with a large black cover over them. There is also internal fuses on the driver door side, below the dashboard, just above...


Performance Chip

I agree with the previously posted solution

Dimmer switch or dimmer switch connector.

Audio head 'INTERNAL' malfunction. Non repairable by Hyundai Service Center - solution is replace the radio.

Try this, put the key in the ignition and let it be on the first turn right marked "ACC" or you can turn off the stereo and you will notice that only the Digital Clock screen will show. Turn the Volume/Audio/Sel knob and press on the "DISP" button simultaneously for about 4 seconds then release the "DISP" button. The digital clock will start blinking, and then use the Tune/Seek arrows pointing up and down to change the time. If the hour digit is blinking change the hour and after you have changed it press "DISP" then the minute digit will start to blink change it using the arrows, when you are done press "DISP" again or leave the clock for between 4 to 8 seconds the clock will start working normally.

I hope this works for you.

Good luck!

Aquinas

My daughter has one . she has had it for 6 years the only thing she has done is put front brakes and rotors.

I would look for a ground that is inadequate.
If any part of this is operating essentially without shielding due to a bad ground, then cell towers, a radio or TV station transmitter, CBs, land mobile radio, amateur radio - any of these can inject enough signal to drive modern electronics completely bananas.
The onboard electronics used for just about everything that is remotely controlled by switches generates a ton of digital garbage and can interfere with anything.

The kind of problem you are experiencing started when we stopped using vacuum tubes 50 years ago operating at high voltages and started using semiconductors that use much lower voltages.

A tech with a common multimeter should be able to locate the missing ground connection without too much trouble.