I installed it by myself,it works fine to play music,but it doesn't remember the time and the last song I played,seemed something wrong with my installation.
I drive a 98 white malibu.
I connected those wires for speakers and that 3 wires from fused filter box,but the rest wire I don't know where should I connect with,espeacialy for the blue one,thanks.

sounds like your constant 12v is not hooked up

I think I connected it with a orange wire,not sure what color of wire should I connect with for malibu. I will check it out tonight,thanks.