I have a sony cdx-s2010c stereo im not sure how the 11 wires are supposed to connect to my care wires I cannot find any free manuals on this

This is happeneing because the stereo does not have a battery power connections. The yellow wire is for a constant 12 volt connection. This connection is for the stereo's memory.

It beeps because it is an "alarm" that sounds because you are not supposed to leave the faceplate in the car when you get out. I read this in the manual

You will need to check the yellow wire of the stereo. This wire must have +12 volts even with the key off. Be sure it has a good connection.

Click Sony Support to download installation guide for CDX-F7500
Thanks.

http://www.kb.sony.com/selfservice/documentLink.do?externalId=C385125
Frank, try this link for wiring connections...looks like there are 2 different pin outs available here. Hope this helps.

I have a Sony cdx 5090 car stereo, I don't have the manual for it. I need to know the wiring color codes for it to hook it up.

hey, i just found one of these in my garage and im trying to connect mine too.. I found out what the wires do...

black(ground) - any metal part of the car
red (remote) - to a wire that gives 12v+ when ignition is on.
Yello (power) - 12v+ source, just connect this wire straight from + on the battery.
Read this manual for more info....

http://safemanuals.com/fullswf-SONY.php?type=.SWF&file=SWF/SONY/15-01-08-13-09-05-614&langue=en&img_width=839&img_height=1191&cat=vide

Automobiles use Direct Current "DC" and is very dependant on a good ground. The black wire from your stereo should be the ground and needs to be attached to the chassis "metal part of the car". You can use an ohm meter to check for grounds by placing one lead on your door hinge (unpainted) and the other to where you are connecting your ground from the stereo. Be sure that this wire does not have voltage on it with the key off, on acc, or in the on position or you could blow a fuse or damage your equipment. Besides that make sure that you have 12v constant to the (usually red wire) and switched (voltage only with the key on) to (usually the yellow wire). Hope that helps. It's mostly about the ground.

Be sure the orange wire with white tracer is getting power,. It is for illumination. You can visit the Sony website and download a free installation manual for this receiver. Hope this helps.

Some units also have an ignition wire that must be hot for the unit to turn on. Other than that, I can't think of anything else other than a bad unit.

Hope that helps...

Geno