My son just put a new sound system in his 02' WRX and somewhere along the way he lost his constant power to the entire car. Key has to be on for the interior lights and keyless entry to work, trip meter resets everytime he turns the key off, etc...etc. No blown fuses in the car or under the hood that we can see.
Anyone stumbled across this issue before, or know the system well enough to suggest where to start the trouble shooting??