Cant get sound through speaker and mode button wont switch to cd chnger

Sounds like that the cd is jammed inside the players so you could either take the player out the dash and open it up yourself or take it to a dealership/repair shop for them to fix it for you.
Also there might be a small holes located under the cd slot big enough for a pin to release the cd manually?

Which three fuse's did you replace ? You should check for B+ voltage on both side's of the fuse . Two little metal tabs on top of the fuse. Voltage on both , fuse is good .
Try radio self-diagnostic mode .
A fluctuating AC voltage audio signal is sent to the speakers directly from the audio unit to reproduce sound. The audio unit has a self-diagnostic mode that can be entered by pressing preset buttons 3 and 6 simultaneously.
Visual Inspection Chart Mechanical Electrical

• Audio unit
• Antenna or antenna cable
• Speaker mounting/speaker cones
• Radio ignition interference capacitor, radio frequency interference suppression bond, or radio receiver hood bonding strap

• Smart junction box (SJB) fuse(s):
  • 7 (10A)
  • 12 (5A)
  • 16 (15A)
• Battery junction box (BJB) fuse(s):
  • 7 (40A)
  • 15 (20A) (Hybrid)
  • 16 (25A)
  • 21 (40A)
  • 22 (40A) (Hybrid)
  • 23 (40A) (Hybrid)
• Subwoofer amplifier
• Circuitry
• Audio unit

1. If the concern is visually evident, GO to Symptom Chart .

1. If the concern is not visually evident, proceed to the Speaker Walk-Around Test and the Audio Unit Self-Diagnostic Mode.

Speaker Walk-Around Test (Except Premium CD6)
NOTE: To enter the speaker walk-around test or audio unit self-diagnostic mode, the audio unit must be turned on and in the radio tuner mode (AM/FM).

1. To enter the speaker walk-around test, simultaneously press the audio unit preset buttons 3 and 6.

1. The speaker walk-around test stops at each speaker and applies sound to each speaker for about 1-2 seconds. Each speaker is tested and displayed on the audio unit in the following sequence: RF, LF, LR, RR and SUBWOOFER.

1. To exit the speaker walk-around test, turn the ignition switch off, turn the audio unit off, or press preset button 1 for diagnostics (DIA).

Audio Unit Self-Diagnostic Mode (Except Premium CD6)
NOTE: To enter the speaker walk-around test or audio unit self-diagnostic mode, the audio unit must be turned on and in radio tuner mode (AM/FM).

1. To enter the following tests, press the desired preset button while in the speaker walk-around test or while in the audio unit self-diagnostic mode.

1. To exit the audio unit self-diagnostic mode, turn the ignition switch or the audio unit off.

1. If the concern remains and the fault is not detected, GO to Symptom Chart to continue diagnostics.

1. The self-diagnostic mode has 6 manual tests available:
   • Preset button 1 = ENTER DIAGNOSTICS. This test enters diagnostics from the speaker walk-around test. Metrics are available with SEL and ON buttons indicating time played in AM/FM, media, number of buttons pressed, etc.
   • Preset button 2 = EEPROM BLOCK STATUS. This test shows the validity of memory to calibrate the clock, and seek sensitivity.
   • Preset button 3 = EXIT DIAGNOSTICS.
   • Preset button 4 = Software configuration level. This test queries each radio system controller for its software configuration level.
   • Preset button 5 = DISPLAY TEST. This test lights all the display segments for five seconds and then turns all segments off.
   • Preset button 6 = RAM CONTENTS READOUT. To enter these tests, press preset button 1 while in the speaker walk-around test, then the desired preset button.

1. To exit the self-diagnostic mode, turn the audio unit or the ignition switch off.

1. If the concern remains and the fault is not detected, GO to Symptom Chart to continue diagnostics.

That sounds like your radio is going into protection mode. I would disconnect your speakers one at a time and see if your sound comes back on.

Try setting it first on surround mode because it is normal for the rear speakers not to come on when it is the surround mode is off. For the center speakers make sure it is hooked up properly. Follow the instruction if you have one. Lastly I never heard of center speakers have two speakers in it but if it does and you only have one set of wire to it then one of the speakers is no good.

Assuming you do have all 5.1 speakers connected and a digital signal (DVD/CD etc)
Make sure that you have the surround speakers connected into the right spot on the rear of the amp: they can be confusing with their markings.
Front speakers should be in speaker A front.
You must have the sound setting or sound programme on Dolby Digital or similar, Not just stereo. There should be a dial or button on the front panel for this.
Bear in mind that the rears are the only for effect and do not alway produce sound.
Maybe send me more info:

Feature demo
The feature demo automatically starts when
power to this product is switched off while the
ignition switch is set to ACC or ON. Pressing 6
numbered button during feature demo operation
cancels the feature demo mode. Pressing 6
numbered button again to start the feature
mode. remember that if the feature demo continues
operating when the car engine is
switched off, it may drain battery power.
Notes
• You cannot cancel a demo mode when the
front panel is open.
• The red lead (ACC) of this product should be
connected to a terminal coupled with ignition
switch on/off operations. If this is not done,
the vehicle battery may be drained.

NO., it cant be played thru both when it is in cd/dvd mode because from manufacturing it vl be like that. it cant give its sound to other when in cd/dvd. how am telling is i have YAMAHA yht-165. when i use dvd mode.. the sound wont get thru its output. only works when its in other modes like tuner, md-r, tv, aux.

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please check the following:-1-power plug is connected to wall outlet.
2-it is switched on,3- sound source is selected(dvd-cd-vcr)4-volume level not in low position-setup of speaker is properly set.5-speakers cables are firmly connected.6-no mute switch is depressed.
7-speaker button is depressed.

CANNONT RECIEVE SOUND FROM THE FRONT N REAR SPEAKERS WHEN PLAYING A CD/DVD. THE RADIO AUTOMATICALLY PLAYS THROUGHTOUT THE CAR. WHEN SRC DVD/CD IS SELECTED NO SOUND EMERGES. SO I PUT ON THE DUAL ZONE. AND THE ONLY WAY TO HAVE SOUND IS TO HAVE ONE ZONE TUNER, AND THE OTHER DVD. WHEN I REVERSE THEM OF COURSE THE SOUND WILL SHIFT EITHER FRONT OR BACK. IF U CAN HELP ME FIX THIS AND RECIEVE SOUND FROM ALL SPEAKERS WHILE CD/DVD anPLAYING I WILL APPRECIATE IT. THIS IS COUPLE MONTHS NEW. IT WORKED ONCE OR TWICE IDK HOW THOUGH. AND NOW I'VE TRIED IT ALL BUT STILL CANT FIGURE IT OUT. i went into the zone control and turn off the rear and i still have nothing. pleease help

looking at the front of the unit take the left side pannel and replace the fuses. ive had to do that with mine several times because of the same problem