Car deck not playing cos we changed the car battery, showing a code request before we can play it.

SOURCE: Car radio unlock code

Open your glovebox and look either inside the box, or on the outside black plastic--there should be a sticker with two sets of numbers. I don't remember how many digits the radio code is, but the radio code is on the sticker on the glovebox when it's in the open position.

SOURCE: battery was removed, nedd the code for music

Check the Glove compartment inside top there is a white sticker with the numbers. Just enter the numbers on the radio while the car and radio are on. Happened to me many o' times.

SOURCE: Radio code required.

The better solution is right in your glove compartment. On the inside of the blove box door you should find a small white sticker, usually near the left side. The sticker will have two sets of numbers.

The number set with five digits is your radio reset code.

William Robinson

• 144 Answers
• Posted on Nov 15, 2010

SOURCE: changed battery and alternator i

When you say it's dead, do you mean that no lights, no accessories work? Or just the starter doesn't work? Need to get a little more info before trying to help. Could be a starter issues, or a maxi fuse issue. Doesn't sound like the alternator or battery issue (unless it is battery terminals or ground) since it will "work" after you wait.

SOURCE: please after changing the battery of my VOLVO v40

This is a anti-theft device built into your radio designed to foil robbers. When the radio looses power, the radio locks up. This makes the radio worthless on the black market. The thieves know this and don't steal it as a result. Your owners manual tells you to clear the code if there will be a power loss (changing the battery). There may not be a recovery procedure.

In the GM (1995) version of this system, there is no recovery (if there were, what would be the point of the system?). I don't know the specifics of the Volvo system. You may want to talk to your dealer before you replace your radio. I am sure you will have to prove ownership of the vehicle.

Thanks for your question @ FixYa.com this morning.