My subwoofer doesnt sound

Are you sure you are listening to a stereo program (e.g. FM radio or CD/Tape)? Have you tried adjusting the fade and balance controls? If sound is not coming out of all speakers, you will probably have to replace the radio.

how do i get the music to play do i have to download anything to the speaker there is music on the sd card but wont play

I queried this and was told you can only listen to the FM radio through earphones.

take the blue/white wire from the back of radio and attatch that to the blue wire coming off of radio so in total you'll have 4 wires in 1 connector.

Hello,
In reality the correct way to listen to radio or any music source for that matter is in 2 channel stereo. What this means is that the front left and right will play and also the subwoofer. If you absolutely want all your speakers to play while listening to fm, than press the Multi channel button and set it to direct, or any other sound field that you may desire.
Good Luck

Hi, when you turn on the rear audio button, in the back of the center console, the rear speakers turn off, to enable headphone use in the rear. perhaps this is the issue. Good luck...Coop

analog fm is broadcast in stereo you would need to use a simulated surround setting to have sound come out of your rear and mid surround speakers.
your manual says the default setting for fm broadcast is:
Radio Listening TUNER MUSIC ENHANCER
7ch Enhancer
Select this SCENE template when you enjoy FM or AM
radio programs.
make sure you unit is not in straight mode try pushing the straight button on the front of the receiver let us know if more troubleshooting is needed.

Cheers!

If you are a rock music lover, chances are the speaker has burn out. try to turn on and place your ear near the speaker and listen for humming
sound. if no sound at all, then its the speaker

This is an older way that makers of CD changers used to get CDs into cars that didn't have them.  This is what they tried to get people to by them.  I was never a fan of this system as the sound quality was never better than listening to FM radio.  There is a unit in the car, usually under the dash behind the glove box, that the CD changer is plugged into.  This unit has the FM antenna from the car plugged into it, and then a cable that is the same as that coming from the antenna going from the unit under the dash plugged into the FM antenna jack of the radio in the dash.  All this unit does is take the digital, high quality sound from the CDs, transmit it on an FM frequency (usually low on the FM band 80s, 90s or low 100s) and then you tune the radio into that FM frequency to get the sound form the CDs.  Problem is, the sound quality was only as good as FM radio.  A pretty poor way of getting CDs into cars.  But they sold millions of these things.  If it isn't working, the wiring may have come loose, the fuse to the unit under the dash might be blown, or something is disconnected.  if you go all through the FM dial, 0.1 at a time and don't hear it, it is time to get under the dash near the glove box and poke around.  Good luck.  If it were me, I would take all this gear out and put a new CD/MP3 player where the factory radio currently sits.