Sony Xplod installation help

[krendel154]

Hi, everyone.
During installation of Sony Xplod CDX-GT25MPW on my Sentra GXE 2003 I was using "1995 and newer" diagram (see attachment). After installation it can not store presets. Any time when I turn engine off radio clock goes back to "1:00" and all presets are resetting. As I understand I missed some wire but I can not find out which one is responsible for radio "memory".
Please, help.

[mpe235]

You may have the 12 volt and ignition power wires reversed.

[krendel154]

Thank you for reply.
I was following exactly how wiring diagram says (in attachment) and recheck it two times. If diagram is correct radio should work. Diagram says not to use some wires maybe it is the problem.
Do you think I should switch "Red" and "Yellow" wires ?

[krendel154]

I reversed today 12 volt and ignition power wires and my radio "memory" came back :) !!!
Thank you mpe235 for your reply again.