Question about Sony XR-M510 Cassette Player
Hello, It sounds as if when the unit was installed the installer installed the power constant lead to the ignition. This will make the stereo think that it has been removed from the car and puts it into security mode causing you to have to enter the code to make it work. If you don't know how to do this repair any car audio shop can fix this cheaply. If you know about car audio wiring verify that the constant battery wire is going to the 12+ constant lead in the fuse box and the ignition lead from the radio is going to the switched ACC lead in the fuse box. Also check the fuse behind the radio and make sure it is not loose or blown. Voila it should be fixed. If not check the manual that came with the radio and make sure their is not a setting that requires you to enter a code each time you turn it on, not many stereos have this feature but yours may. If you don't have the manual Google it and you can download it for free.
Posted on Oct 12, 2010
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Posted on Jan 02, 2017
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