Probably happens every time you disconnect battery lead to the radio, unless it has some reserve power in the head unit, such as a small lifetime battery or a discharging capacitor. So it will likely happen again if you disconnect your radio unit or the car battery.

 

Will have to manually input presets and time again.

 

Have tried to manually reset. Radio is installed, all works fine with exception of memory. Is there a wire not connected, if so, what color? Thanks for replies---Bob

 

You lost everything when you disconnect power either from battery or radio itself. you will need to reprogram the channel presets and time

 

If the stations are reprogrammed, and are lost when simply turning off the key[or radio], perhaps the constant power lead on the radio is connected to the accessory[key] power from the car. Is that what is happening?

 

memory loss

Yes, that is whats happening. Color of the wires???

 

Boxcar's Nissan Cube Audio Upgrade - Nissan Cube Car Forums
i used this thread to assume on the car end, the constant power is yellow, the accessory power is red, but i have not seen them with my own eyes.
Thank you to nissancubelife.com!
I gugld 2009 nissan versa stereo wiring diagram.
Also I'm sure many here could tell you exactly which is constant [battery] power. You could also use a multi-meter. The wire that conducts with no key in the ignition is the constant power. Hope this helps. 08v

 

Thank you---Bob

 

Problem resolved, many thanks to all who responded---Bob

 

So what did it turn out to be?