maxima -odd battery problem

relay's buzz, battery and alternator are new, just parked car and 2 hours later it didn't start as if it was dead. Alarm Relay does not seem to click, even when swapped out with another relay of the same color, so I'm just going to assume its not even getting power, also my radar detector does not fully power on.....clock fades in, etc. Attempted to jump and got no-where.

Recommend : Health and Personal Care Tom Tom GPS