CR-712 Have No Code!

Guys, found the answer. Decided to power up the unit with 12V supply to the blue wire and ground on black wire of the unit. The unit power up and shows off immediately radio frequency and could be used without any Code message appears.


Thus, below posts on code hacking is not applicable for CR-712. Next will be installation job into my 940; another chapter of audio installation!

CLICK HERE if you need more information on CR-712 wiring/color coding. Good Day!