How do i reset the password on a Dual xdvd700?

If you haven't changed it, the default is "0000". If you have, you should have written the code down when you did, check the owners manual.

If its stolen, you are out of luck because the passWord exists to lock out the unit after it loses power for 5 seconds and frustrate thieves after they steal the radio as it makes them worthless at pawn shops.