It is a complicated process to reset the radio in your Hyundai Sonata after changing the car battery. First you must have the access key. Enter the access key at the prompt and follow the instructions that will be shown on your radio screen.
http://www.modifiedlife.com/2003-hyundai-sonata-car-radio-stereo-audio-wiring-diagram/
putting in aftermarket radio and need color codes for 1998 Hyundai Sonata GL L4-2.oL
The actual compononts in the radio or for the power/speaker plug on back?
that's normal
The computers are placed behind the radio and the heating systems. They are screwed to the floor of the car. HAPPY UNSCREWING!!!
you need to pop out the frame and unscrew the radio. You will need a wiring harness for an after market stereo.
It will delete the pre-programmed radio stations.
Insert the correct code in the radio by way of the preset buttons.
you must ring the dealer ,and be charming ,explain you have lost the radio code,due to its age its a great advert for the Hyundai dealership,and only a click of their mouse they gave me mine in 10 minutes they phoned me Hyundai services 01494 428600 my code was 2513 Also... Once you get the radio serial # (on the back of the radio or in the glove compartment) and the vehicle VIN number, you can call Hyundai Customer Service (USA - 1-800-633-5151) or (Canada - 1-800-461-8242) and they can give you the 4 digit code needed to reset the radio. This is the process I took with my 1995 Hyundai Sonata.
Radio presets.
I have my code I need to know what to do with it so my radio will work the battery was removed.
No. The only thing would be the clock and radio.