I hooked up a JVC stereo in my 2001 Sonata using a harness. When I connected the wires by color the radio would'nt come on. I tried different color combos and the only way the radio would play was when I crossed a yellow wire with the 2 red wires. Now the memory is wiped out for the radio + factory clock when I turn off the car. The radio will come back on, but no presets work. Any ideas what's wrong?
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2003 Hyundai Sonata Car Radio Stereo Audio Wiring Diagram
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: N/A
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Brown/White
Left Front Speaker Negative Wire (-): Black/White
Right Front Speaker Positive Wire (+): Brown/Yellow
Right Front Speaker Negative Wire (-): Black/Yellow
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown/Red
Left Rear Speaker Negative Wire (-): Black/Red
Right Rear Speaker Positive Wire (+): Brown/White
Right Rear Speaker Negative Wire (-): Black/White
You should purchase a radio harness for your car, and it's wires will connect to wires of the same color from your JVC radio harness. Join the two harnesses together (solder, crimp caps, barrel connectors, etc.) and then one end plugs into your JVC, the other end plugs into the factory harness that the original radio was connected to. If for some reason, your factory harness plug has been cut, you'll have to hardwire the JVC harness. I've included a link to the wiring diagram for your car. The steering wheel controls are moot; they will not work unless you've got some aftermarket adapter that allows them to interface with the JVC radio. 2004 pontiac grand prix speaker wiring diagram Google Search
the coin holder and remove the two screws at the front. Pry the trim
from around the gearshift lever and unhook the power wire to the
and remove the two screws from the bottom of the radio trim panel. Look
for the screws, attached to a rod, below the glove box. Unhook the
cable from the rod and pull the rod free.
the shifter into "D" and slide the radio trim panel away from the dash.
Locate the four screws at the front and sides of the stereo and remove
Pull the stereo out of the Hyundai Sonata dash and disconnect the wires from the back of the unit. Connect the wiring harness adaptor to the original harness.
the new head unit into the Hyundai radio adaptor kit. Attach the wiring
harness adaptor and antenna wire to the back of the new head unit and
push the entire assembly into the dash.
the stereo in place with the four front and side screws and turn it on.
Verify all of the speakers and features are working. Reattach the radio
trim panel, insert the rod back into cable assembly and secure the trim
around the gear shift.
i have attached the wiring info you requested. be sure to test all wires with a meter before connecting. also a link to metra's website if you need an installation kit http://www.metraonline.com/fitl.aspx BatteryRED/BLACK(+)RADIO HARNESSAccesoryBLUE(+)RADIO HARNESSGroundN/ATHIS RADIO GROUNDS THROUGH THE CHASSIS MOUNTING BRACKETS.IlluminationRED/YELLOW(+)RADIO HARNESSDimmerN/APower AntennaGREEN/BLACK(+)RADIO HARNESSLF Speaker (+)BLUE/WHITELF Speaker (-)BLUE/YELLOWRF Speaker (+)BROWNRF Speaker (-)BROWN/WHITELR Speaker (+)REDLR Speaker (-)GREENRR Speaker (+)BLUERR Speaker (-)PINK
You can go to a place that installs car stereos and purchase a universal wiring harness for your car that will cost about $15 and allow you to do the wiring very easy without the need to know what every wire is for. This harness would be wired to the harness you got from JVC for your new radio and all you need to do is to match the colors of the JVC harness to the same colors of the universal harness that would then just plug right into the factory wiring harness for your car and then the other end plugs into the connector for your JVC radio. It is very easy and insures that you have all the proper wires connected to operate your radio and have full functions available for use.
If you require to know what each wire from the JVC harness is for, just ask.
I would be happy to offer you more help if you need it, just reply to this post and I will get back to you as soon as I am able.
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Thanks and good luck with your radio installation,