Stero locked and not rds does this matter?

Of course. As a matter of fact, many car stereo shops will sell the correct wire harness adapters in order to fit the car's OE connectors, so that no cutting and splicing is necessary. Simply plug in, and install.

yeah they should be able to unlock the stero /unhooking battery without retreiving codes will lock up stereo . i would tell them get codes or get new stereo

Hi,

Regretfully due to reasons of theft or piracy we do not pass the radio codes here at FixYa. If you contact your local Mercedes-Benz dealer they will give you the 5 digit code. (You must have your registration and know the complete serial number of the radio)

Kelly

you should be able to take the code and use the numbers on the face of your radio.

Usually car stereo's have two wires that supply power, aside from the ground. One has power all of the time, for your memory and clock. The second is for when you turn the ignition key on, to allow the stereo to come on. It sounds like you have a power wire going to the the wrong one.

go to dealer supply proper docs should be free

Press and hold SCAN and RDS. 1000 will appear and you can enter your code using the station buttons 1-4 to set the digits.

The Ford Focus has a stereo problem where the display blinks on and off, with or without the ignition on. This is not a power problem.

This problem occurs when attempting to store a radio station when a blank RDS signal is being transmitted.
To restore your stereo:

• Insert a CD, stereo will turn on in CD mode.
  
• Press MENU button
  
• Select DEFAULT RESET by turning the right rotary knob and press to select
  
• Select YES by tuning the right rotary knob and press select
  
• Press BACK button
  
• Press the RDS button once, display will read RDS OFF
  
• Stereo will now work properly
  

To prevent this problem from occurring again, be sure some text is in the top line of the display when setting a stereo station. Do not set a station when the station name is blank in display.

That's usually how it works. On the Delta stereo you hold the FM1/2 and DX buttons. You can try different combinations though. Also, make sure you press both buttons at the same time - don't hit one and hold it down, and then hit the other - it won't work that way.