Front speakers not working - Sony CDX-GT100 CD Player

fade setting?

Does the right front speaker need to work in order for the whole speaker system to work?

The whole system can still work with or without it.

Here is an additional tip how to ..... Computer Speakers

Adding on again: I have interchanged speakers, if i connect any speaker on the right front channel it will not work. When I do a automated speaker test only right front channel does work.

have the front speakers ever worked?

if not have they been connected properly?

if yes then
look under ballance and check theat rear and front ballance is in the middle
if it is then for temporarily replace the front speaker with any old speaker
if that works then you need new front speakers
if no then the radio is broken

but what you could do is rewire the back speakers so they also play though the front ones too
this can be done from behind the radio

find the rear right positive and negative wires
strip the insulation but dont cut the copper wire
cut the front right speaker and attach that to the rear speaker wire
do this for both positive and negative

rear right
positive
..v
..v
I...I
I...I
I...I
.I.I..........< strip cable but do not cut metal
.I.I..______________
.I.I=_______________ <<<front right positive
.I.I
I...I
I...I
I...I
I...I

Check if a or b or what is reflected for speaker.

reinstall ur sound and video program

try different speaker if works .its the speaker. if another speaker does the same .your radio is the problem.

Sounds like you are getting quad sound in the test process that checks them, yet when in windows media player or winamp (or whatever) your rear speakers aren't producing sound: Try setting your sound drivers to do something like "speaker fill" then you are set. I'm under the belief that stereo sounds aren't being matrixed into all 4 speakers.

1997 Hyundai Sonata Car Stereo Radio Wiring Diagram
Car Radio Constant 12V+ Wire: Red
Car Radio Switched 12V+ Wire: White/Green
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
Front Speakers Size: 4′
Front Speakers Location: Dash
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
Rear Speakers Size: 6 1/2′
Rear Speakers Location: Door
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/Whi

You need to use a digital interface cable between the sound card and the speakers to get all of the 6 channels to work properly.