Cobra Esd 737 Power Cord I Have A Cobra ESD 737 Radar Detector And I Have No Power Supply For It. I Need To Know The Voltage & Current?

I have a cobra ESD 737 radar detector and i have no power supply for it. i need to know the voltage & current? - cobra esd 737 power cord

I had a friend to me a radar detector power is turned off, then I am that I just know what voltage is needed. Seems to be 12 volts or less. I must also know to the latest version so that you can select the appropriate fuse and wire size.