I as yourself have spent to long looking for the answer for this question but has finaly found it! Below is what every colour wire does...
1995-97 Hyundai Accent Stereo Information
Constant 12V+ Red/Yellow Switched 12V+ Blue/White Ground Black Front Speakers 5 1/4" Doors Left Front (+) White/Red Left Front (-) Black/Red Right Front (+) White/Blue Right Front (-) Black/Blue Rear Speakers 6 1/2" Rear Deck Left Rear (+) White/Red Left Rear (-) Black/Red Right Rear (+) White/Blue Right Rear (-) Black/Blue
-Starball
http://www.modifiedlife.com/2005-hyundai-accent-car-stereo-radio-wiring-diagram/
http://www.modifiedlife.com/2001-hyundai-accent-car-stereo-radio-wiring-diagram/
The 2005 Hyundai Accent is 5 ft. 5.7 in. (65.7 in.)100 watts stereo output wide.
http://www.hyundaiforum.com/forum/showthread.php?t=6830
You need to switch off the stereo and then you can use the buttons next to the clock to change the time. this also changes the time on the stereo.
If you would like a simple picture guide to replacing the stereo in your 1995 to 1999 Hyundai Accent please follow the guide at: http://www.soulaccent.com/guides/X3-headunit/X3-headunit.htm Please note this guide is for the Accent's fitted with the rotary dial type climate controls. For those with the slider type controls you simply have a few more control cables to disconnect, but the overall principle is the same. To ask more questions or get answers on more Hyundai Accent questions / problems, please feel free to visit www.UKHAC.co.uk (UK Hyundai Accent Club). - Soullink (UKHAC Owner)
http://www.modifiedlife.com/request-a-hyundai-car-radio-stereo-wiring-diagram/
if it is anything like my 2006 Hyundai accent then you have take take off the black trim around the stero.. there are about 6 places where you need to pry. the corners and the middle areas. kind of tough to get off but just keep pulling. you wont break anything. just pull hard. after that is off all you have to do is unscrew the srews
The turn signal relay is behind the storage compartment on the left side of the steering wheel. All you have to do is pull the compartment out and there you are.
http://www.hyperaustralia.com/phpBB2/viewtopic.php?t=2820 stereo removal
its a 10 gallon usually
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