With LED's 1,2,6 and 7 flashing means incorrect motor type selected, but this also could be a poor connection from the speedo to motor. As the motor is making a small clicking noise it could be that you have the motor cables wired incorrectly or a bad solder joint, so re-check all and ensure that cable A on the speedo goes to connection A on the motor and like wise for connections B and C.
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