Audio Systems: 2004 Olds alero stereo wiring, olds alero, dual mp3

Question
I baught a new (DUAL) mp3/wma car stereo cd changer. I have hooked up all the wires through an adapter. everything I read about the specific wiring, I had done. MY radio did not start nor turn on after I pressed the reset button located on the new stereo deck. I looked back at the connectors and realized that the double din stock cd changer didn't have the ignition switch wire also known as the accessories wire, described to be yellow. I found no trace of this accessories wire.      PLEASE HELP, I've spent 2 full days installing this stereo already.

               appreciate the work THANKS -  

Answer
hi and in case you didn't notice  i  have a lot more bad news for you
the chime warning for the door open and key is on the ignition are not working anymore
also the cluster  is not working right  it tells you that there is gas in the car but you are going to run out of gas and not notice also some other funtions on the vehicle will stop working soon  
to install the radio in this vehicle you need  this

http://www.oemautosound.com/pc-218-135-pac-c2r-gm24.aspx

this interface supply the missing wires also stay away from pink wire  it is DATA for computer information
good luck