I purchased a 2006 nissan pathfinder. The system plays but there is no sound coming out what do I do?

Get the suspension springs checked. Park the vehicle on a flat, level surface with no-one in it. Stand back and carefully look at the vehicle. Sometimes when a spring fails the vehicle will lean towards the broken side. The tail ends of the spring can break off when they are old and the broken bits don't always fall out when it happens.
The stall could be something separate. Do you have any warning lights on the dash? If the charcoal canister is starting to fail it often causes the check engine light to turn on as it will affect the emissions. This will trigger other engine sensors to flag up a trouble code.

Hi here's a link for the owners manual to 2006 nissan pathfinder.... CHEERS
http://www.nissanusa.com/pdf/techpubs/pathfinder/2006/2006-Nissan-Pathfinder.pdf

From the PCoA (pathfinder club of Australia):
ignition on
as spanner and countdown flashes:
press the odo reset button and hold until new figure flashes
use odo button to set desired figure (1000's)
then wait and its done

If you live in a cold climate, you may have a frozen fuel line.

The first thing to look at is the fan clutch, it sounds like the clutch is bad or you are low on coolant.

nissan has to have the worst cd player system in history going back to 2001 pathfinder wich every year and model has had this stupid problem and they would never fix under warranty. best bet is to get after market one dont waste ur money fixing this one if you dont know how to open radio you must get some one who can get cds out

check for disconnected wires

Has your fuel economy dropped? It may not have, what it sounds like to me is a low rpm miss. You could have a dirty injector or injectors, hard to tell unless hooked up to engine analyzer

sounds like tranny bad read codes first

I was told the in dash radio unit will not play mp3's. as far as the dvd player, if you have the entertainment system i can't say. I do have two solutions for you.
1) the in dash cd player (mine is a 6 disc cd player) will not play mp3's at 128 bit compression, but for some reason or another I burnt an mp3 disc using the 256 bit compression, still smaller than the standard mp3 comparable cd quality, and unknowingly tried it in the cd player. The nissan quest played it. So it sounds as if the cd player is picky about how low quality of an mp3. 128 is a common reasonable quality. However, I was able to squeeze about 15 tracks on a 256 bit mp3 disc.
2) the in car dvd unit. If your unit is of the standard type, under the seat or mounted elswhere in the car, you could replace it. Dvd players sell for around $125.00+ and will play everything under the sun. reconnecting is not the biggest challenge neither.
& 3) You could purchase an additional hardwired device which allows you to plug in any audio device and play the sound through the Nissans sound system. The device into plugs directly into your wiring loom behind your factory radio. The best part is that the nissan system is already set up to receive this device. It will play through the sat1 or sat2 buttons. I searched and purchased the device online.
i had installed that before learning of the mp3 deal.
well good luck.
Sincerely, Flash