I need to order a wiring harness the yellow and black ground got pulled out during installing

I found a wiring diagram for the 2005 Hyundai Elantra that might be helpful . According to the diagram, the color codes for the factory wiring harness are as follows:

Wire Color Function
Orange/Black 12V Constant
Yellow 12V Accessory
Black Ground
Blue/Black Power Antenna
Green/Orange Illumination
Brown/White Left Front Speaker (+)
Black/White Left Front Speaker (-)
Brown/Yellow Right Front Speaker (+)
Black/Yellow Right Front Speaker (-)
Brown/Red Left Rear Speaker (+)
Black/Red Left Rear Speaker (-)
Brown/White Right Rear Speaker (+)
Black/White Right Rear Speaker (-)
If you don't have a plug on your factory wiring harness, you can hardwire it by connecting each wire to its corresponding wire on your new stereo. You can use crimp caps or soldering to make the connections

. If you're not comfortable with hardwiring, you may want to consider purchasing an aftermarket wiring harness that clips onto the factory harness you removed off the rear of your factory radio during its removal. This will make it easier to connect your new stereo to your car's electrical system .Hyundai Radio Wiring Color Codes - Radio Codes Calculator

If you are referring to installation and have the aftermarket wiring harness, The wires should be color coded. RED, YELLOW, & BLACK are power, ignition and ground. These should correspond to matching wires on the back of the head unit (CD player). Match the colored wires from the back of the unit to the same colored wires on the aftermarket harness and then connect them using wire connectors/wire nuts. Once you have them into the correct order the aftermarket harness should connect into the harness in your vehicle. I hope this answers your question =)

depending on who did the install . if it was a shop take it back should have a warranty. If he owner who posted the question install clarion radio here are some ideas that need to be checked out to determine what is the problem...

1. did the installer fry the radio during install
2. you must have a good ground and (12.0 volts to 13.5 volts on the red ignition switched wire only when the ignition is on or cars running) and (12.0 volts to 13.5 volt on the yellow wire which is constant power wire at all times.. even when the cars not running this is what keep all the station save and clock working with correct time)


A. buy a digital volt meter
then remove radio from dash and check the for power with out damaging any harness or wires.

what you are going to do now is unplug the wire harness from the back of the radio to use this to check for power and grounds that will make the radio work...

1. turn on the car or truck set your voltmeter to dc voltage take the wire harness for the radio and find the black wire going into it and then (take the black test lead from the volt meter and slide it into the spot on the back of the wire harness where the black wire is make sure the metal tip of the test lead is all the way in and it is making contact to the metal pin to get a reading) the black wire at harness is the ground wire

take the red test lead from the meter and do the same thing but this time your going to find the red wire on the harness . which the red wire is the ignition switched wire which is controled by the cars ignition switch

once these to test leads are touching both the red and the black you should get a reading on the meter like 12.0 volts to 13.5 volts
remember what your reading is cause at this point you need to check one other power wire to determine that problem here .
now turn off cars ignition.

There is a yellow wire that is call constant power in the radio harness turn off the car at this point and move the red test lead to the yellow wire on the radio harness. now look at the volt meter to see if you are getting a reading like 12.0 volts to 13.5 volts

if nothing here either here are some things to check


1 ignition is not in proper postion to power up radio harness
2 test lead from volt meter not making contact to metal pins on wires in the harness ( must touch metal pin not the casing of the wire to get a reading)
3. blown radio fuse in the fuse panel of car or truck or suv
4. no ground for radio ..(with out a ground radio power circuit is not complete)

how to check to see if radio ground is good
A. find a pice of metal in the car that is attached to the frame of the car sometimes you might find that there is something behind the radio or the antenna casing will work because the way the antenna grounded.
B. now retest the red (ignition switched wire ) and the yellow (constant power wire) again using the new ground location take the black test lead and touch what you think is another good ground.. now take the red test lead and touch it to the yellow wire on the radio harness make sure it far enough up into the back of the harness to make contact with the metal pin at end of wire with out damaging anything.
C if you have found a good ground you get a reading,,, just like i told you before..12 volts to13.5 volts this mean getting power

D. now check the red (ignition switched wire again ) using the new ground location . don't for get this time you must turn on the ignition switch to power up this wire and when done turn off ignition switch.

if you find that you have power now by using the new grounding location change the radio harness ground wire to this location..

if you still have no power check all fuses in the car one of them may be blown ..

if you feel after reading this that you don't think you can do this simple task look for a mecp certified installer in your area to to this for you ...

Constant 12V+ Orange Switched 12V+ Yellow Ground Black Illumination Gray Here you go. This is listed for an 85 to 89 Impala, but should still hold true.

the power terminals from the trailer arent direct connected to the battery terminals.when you are plugged to the mains the battery is charging and disconnect [via a relay perhaps]the orange terminal from batt+.try to make anew connection from the trailers battery terminals with a new fuse separated from all trailers circuit'use 2-2.5 mm*cables and a 15amps fuse.connect the yellow and red to+batt and black to- batt.

the brown is a mute wire. i dont recomend hooking this wire up

Battery ORANGE (+) RADIO HARNESS
Accesory YELLOW (+) RADIO HARNESS
Ground BLACK (-) RADIO HARNESS
Illumination GRAY (+) RADIO HARNESS
Dimmer BROWN (+) RADIO HARNESS
Power Antenna PINK (+) RADIO HARNESS
LF Speaker (+) TAN
LF Speaker (-) GRAY
RF Speaker (+) LIGHT GREEN
RF Speaker (-) DARK GREEN
LR Speaker (+) BROWN
LR Speaker (-) YELLOW
RR Speaker (+) DARK BLUE
RR Speaker (-) LIGHT BLUE

Battery ORANGE (+) RADIO HARNESS
Accesory YELLOW (+) RADIO HARNESS
Ground BLACK (-) RADIO HARNESS
LF Speaker (+) BROWN/WHITE
LF Speaker (-) BLACK/WHITE
RF Speaker (+) BROWN/YELLOW
RF Speaker (-) BLACK/YELLOW
LR Speaker (+) BROWN/RED
LR Speaker (-) BLACK/RED
RR Speaker (+) BROWN/WHITE
RR Speaker (-) BLACK/WHITE

Factory in-dash wire harness that
snaps into the factory radio.
AS VIEWED FROM MATING END OF CONNECTOR
E F G H I N O P
A B C D J K L M
Note: using an optional snap on wire harness adapter will simplify the wiring. Most snap on
wire harness adapters have already converted and color coded the wires from the auto
makers in dash wire harness to match typical aftermarket radio wire colors.
** The wire colors listed in the chart above are typical for these vehicles during these years
but may not be the exact colors for this vehicle. This is another reason to use a snap on
wire harness adapter. **
Typical Honda/Acura "Typical" New Radio
Pin What It Is In Dash Wire Color Equivalent Wire Color
A Right Rear Spkr (+) Red w/ Yellow Stripe Purple
B Left Rear Spkr (+) Blue w/ Yellow Stripe Green
C Power Antenna Trigger Brown w/ White Stripe Blue or Blue w/ Wht Stripe
D +12 Volt Ignition Wire Yellow w/ Red Stripe Red
E Right Rear Spkr (-) Brown w/ White Stripe Purple w/ Black Stripe
F Left Rear Spkr (-) Gray w/ White Stripe Green w/ Black Stripe
G Ground Wire Black Black
H Do Not Use
I Do Not Use
J +12 Volt Battery Wire White w/ Yellow or Blu Stripe Yellow
K Dash Light Dimmer Wire Orange
L Left Front Spkr (+) Blue w/ Green Stripe White
M Right Front Spkr (+) Red w/ Green Stripe Gray
N Do Not Use
O Left Front Spkr (-) Gray w/ Black Stripe White w/ Black Stripe
P Right Front Spkr (-) Brown w/ Black Stripe Gray w/ Black Stripe

he is right to an extent i have installed many of these the yellow black wire off the rca harness you have to pull the pin out of the harness and move it up one space and ground it out just an fyi if you vss wire is connected it wont work either let me know if you have any other questions