No harness for jvc kd-lx1, require assistance to wire the radio c

you to wire a powered anntenna adaptor to the blue on the radio harness

Car's wire harness color may not be the same as Radio. Best option is to buy an adapter from ebay. Cost on a few bucks.

For radio wire harness click the link below:---

http://repairhelpcenter.blogspot.com/2012/12/wire-harness-for-radio-jvc-kd-s5050.html

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These will help.

Thanks.

need to check the yellow constant power wire on wire harness to see

1. connected to battery with constant 12 volts
2. if wire has power 12 volts

if no power check fuses to see if blown

with out this wire working right you will never have pre set station on radio or clock
with correct time

Use 2 butter knife one in each side and remove the face and pull the unit out

you have the red and yellow wire on the radio mixed up switch them

Hello claude_bouth,You need a vehicle specific aftermarket connector generally called a "wiring harness". Your JVC came with a plug that fits the back of the receiver with "pigtail" wires which you splice to the harness wires. http://www.SonicElectronix.com sells the Metra 70-7301 which appears to be the correct harness for your Elantra.You can tap into the wiring of the car harness and splice the wires by function into the appropriate car wires, but using the aftermarket vehicle specific wiring harness is a lot easier and you don't need to disturb the vehicle wiring in any way, just plug into it. It also makes it possible to re-install the factory radio if you ever need to do so. If you choose to tap and splice, you can find your Elantra's wiring color code at http://www.modifiedlife.com.Hope this helps.

Your switched ignition lead is hooked to a constant voltage wire.
You need to find a source wire that is only given power with the key in the on position.
One wire (yellow) on radio goes to a power wire with +12V constant power (regardless of key position)
The other wire (RED) on radio will need to be attached to a Power wire whose supply is only +12V when the ignition is enabled.
Since you are using a wire harness, you just need to reverse the 2 wires as they currently are installed.

Hope this solves one problem anyway.

the wires being reversed on the harness also may not activate an internal relay allowing the steering wheel functions to operate.Switch the 2 power wires, and re-try.

If the steering wheel controls still fail to operate properly, your module may be defective.

Post your results.