Car amp my amp,'sis switching on but no sound comes out of speakers.i have already check all the wireing and that was correct.can you plz helpme

Check your subs impedance to establish speaker is working ,Check crutch field advisors website for sub box construction and detailed wiring instructions.

1000W system is enough power to blast your neighborhood. If the + and - connections are correct the speaker balance is connected properly. I assume you have checked the speakers and they have been working fine.
Thus, the problem is internal, within the amp. Make certain that you have selected the proper sound out to the speakers. With the speakers attached, keep switching around from one sound path to the other. Make certain, your source (input to the amp) is proper and the signal is communicating with the amp. If the amp has direct out ports to L/R Center and Surround that you can use wires to connect to the speakers, try that method.

Is the amp switching on? There are two 12v wires that have to be connected. One from a direct constant 12v supply source, and the other one from the ignition switch 12v source.Find a single 12v. supply which you can take from the lighter connection and then trace a 12v wire that runs from your ignition switch. This is mentioned in the amp manual.Double check. If the amp is coming on but no sound, then your wire connections from the amp are not correct.Or you have also connected the speaker wires incorrectly.Remmember not to connect the earth of the speaker wires to the direct earth(body of the car) but to the earth wires that are shown in the manual as this could blow the amp power IC. The earth wires of the speakers are marked -- and + respectfully and are also colour coded.You should have a RCA female plug connector from your amp to the subs. Check everything double and if still no luck their is a possibility that you could have blown an IC in the amp from wrongly connected wires. Hope this is not the case.

Are you using the factory speaker wires or did you run brand new ones ?
That could make a big difference

this may sound dumb but....

is there an input switch on the amp?
And is the polarity correct on the input wires?

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There could already be a problem with the speaker jack, if only one channel is consistently giving no sound on your system.

Try turning the male (connected to speaker wire) jack and you might hear a static crackle while doing this. If you get both channels to produce sound this way, you already have a failing audio jack, and may need replacement later on.

Hope this helps.

one think the picture of that amp and the amount of wattage i recommend you change the wire to 4-guage and check the rca,and spk wiring

well the drivers at foxconn are now GONE.
nobody runs XP now on earth.
it is a virus magnet.
do ear buds fail this is test $1, takes power or batteries as speakers, or real 3.5mm head phones wired. speakers later not now testing when dead.
green jack is it;.
this trash mobo is SIS based and SIS is DOA / EOL for ages.
never buy via or SIS or Nforce based mobo ever they are trash now,
send it back, and ask for what to buy first, not spend hard cash on trash, ok>?
its the YUGO car of MOBO

siS761GX+SiS964 ch (OUCH)
AC97 SOUND COMES FROM THE 964 CHIP.
and is wired up by foxconn that means only there driver works for XP, not from SIS as they are dead.
the problem is most drivers seen for XP are infected, 99% pure.
like ivory soap
warning I TOLD YOU this.
MS ended XP support in 2014
that is strike 1.
strike to is SIS is dead
and strike 3 is , XP drivers in the wild are INFECTED.

https://www.sis.com/DriverDownload.aspx

sis 2012 set it oldest support\ed

Check your wiring to your speakers or AMP.

If not amp, you may have slipped a wire from the back or wired them backwards.

If AMP, make sure RCA leads are plugged in securely and speaker cabling is entered correctly.

Yellow - +12V Constant Power Red - +12V Switched (accessory) Power Blue - Power Antenna Blue/White - Amp Turn-on White - Left Front Positive Speaker Wire (LF+) White/Black - (LF-) Gray - Right Front Positive Speaker Wire (RF+) Gray/Black - (RF-) Green - Right Rear Positive Speaker Wire (RR+) Green/Black - (RR-) Purple - Left Rear Positive Speaker Wire (LR+) Purple/Black - (LR-)