1999 audi a4 rear speakers don't work

you must check wiring cable of left speaker-reconnect antenna cable and check if it is firmly connected and apply contact cleaner over faders.

Are they not working or are they poor sound quality? Replace with better aftermarket speaker or install a sound system and aftermarket amp.

Sounds like one of your connections are bad. Go through them again and be sure everything is secure. Also, definately check the fader and balance settings, could just be that the fader is set to front and balance is set to left. Also, why did you punch the first one?

alarm sensors work really hard on a car and does bottom out over time. it sounds to me that a faulty sensor is messing around with the security system. I know of people that bypass this by installing a new aftermarket system which is more advanced and uses the door mechanisms and transponder key. good luck

I have a similar problem on Audi A6 2.5 tdi year 2000, is just that my subwoofer is working fine, but the rear speakers have no sound and the rear satellites on the same ciruits are working just fine, I cannot explain this! I have taken apart the rear speaker and teasted with an ipod and one is working fine but the other is dead! I don t know if there is any connection, or there is a filter for the rear speakers and if one speaker is dead there will be no sound on the other speaker! but as i said on the same cables satelites are working well!

i believe that car has a pre-amp in the rear speaker setup, but the clip should work fine, i would return it, they do have a 10 percent failure rate. Nothings wrong, there's just a lack of signal. If nothing else works you may have to run speaker wire from the deck to the rear. Its not bad, just takes some time and common sense, as long as you are comfortable doing that stuff, most of the platsic around where your doors go is simply clipped into place, and can be removed and replaced with relative ease, run the wires for both spkrs on the same side, get them in the trunk, and hook them direct to the speakers themselves. Good luck!

look at crutchfield.com for free, they should be able to answer you're question...
Good Luck

If your factory wirig harness has been cut< take a 9 volt battery and touch diffrent wires, once you touch th negative and positive side of one speaker you will hear a small static sound out of that speaker. that may help you locate th speaker. and th brown will be your ground on each speaker

You can't use any of those - the large connector at the OEM speakers is because the rears are amplified. Your factory head unit puts out a line level signal to the rear speakers. There's an amplifier on the driver's side rear speaker (the box around the magnet that you can see from inside the trunk).

You need to either replace the head unit with an aftermarket one to drive your new speakers, or you need to tap into the amp connector and find the line level wires, break them out, put RCA plugs onto them, and plug them into an aftermarket amp, which you'd use to power your rear speakers. Doing it that way allows you to keep the factory head unit.