MARTECH RCD PRO Remember to connect the radio power supply 12V/3A.
The code for this model is entered by the use of a Rotary Encoder (Big round button) and if you are failing to read a code number successfully, then it is important to perform a keyboard test. The purpose of the test is to ensure that the Clip is able to communicate with the stereo, and its function is to select and enter an incorrect code, putting the unit into SAFE1 or SAFE2 mode. This can, of course be reset using the other functions from the Clip menu.
If the test is successful, the Clip will display a series of numbers, ie: 0,1,2,3, OK - DONE and you should see these numbers being automatically selected and entered onto the radio display at the same time.
However, if the Clip displays the same numbers above, but nothing happens on the radio, or you see the blank code entry square moving across the radio screen, then the test has been unsuccessful.
If this is the case, then try turning the Rotary Encoder one click clockwise and then perform the test again. Repeat by turning the Rotary Encoder one click counter clockwise if still unsuccessful.
If all has failed, then you will need to recheck the solder connections that you have made between the Expander and the radio.