Free Radio Code Entry Help for Sony CDX-M800 Radios.
Below are the instructions we hold for entering the code into your Sony CDX-M800 car radio.
We do not guarantee the accuracy of the information contained on these pages.
If you find our instructions are either incorrect or not available, please let us know, where possible we would appreciate if you could supply any instructions you found to work for your radio.
Code Entry Instructions
After switching on the set the display will show [ SECURITY CODE INPUT ]
Open the front panel by pressing the left hand button on the fascia.
The centre display will be showing [ CODE IN 0000 ]
Press [ + ] until you reach the first digit required then press [ SEEK ] to enter
Press [ + ] until you reach the second digit required then press [ SEEK ] to enter
Press [ + ] until you reach the third digit required then press [ SEEK ] to enter
Press [ + ] until you reach the fourth digit required then press [ SEEK ] to enter
The clock will be displayed once finished. Press the [ SOURCE ] key to switch the radio on.
Just some of our Google Reviews & Ratings
Nigel Bunting
Contacted dealer regarding code and they wanted £26 non refundable and no guarantee it would work .
Collette Baker
Quick and easy found my serial number by holding down numbers 1 and 6 on my radio for couple of seconds. Then simply typed it in and got code straight away. Now I can drive without feeling insane
Petr Kabelka
Code for my siemens Vdo cdr 2005 works correctly.