I wouldn't do either. I'd save a few more dollars first. Nice car BTW! I know what you mean but I've been saving a whole year just saving for this car and I've tested driven a couple to know that the even the premium bose package does not pack a punch at all.. I mean seriously and turning up the base just makes the speakers sound distorted. But anyways I am saving up for a particular setup but its going to take a few months. Mind you the trunk space in the G37 is ridiculously small, cant fit shit in there (Unless your a midget killing hitman) 2 Polk Audio SR104-DVC subs 1 Polk Audio PA1200.1 Amplifier 1 Set of Precision Power PPI 356CS components 1 JL Audio XD600/6 Amplifier But Until then I need something to hold me off, thats not too expensive because I will be paying for installation too. What is your budget? The stuff your saving for isn't that great either. 1200 before install, any toughts appreciate any feedback. New too the game what Im looking for is really Clean Hard Base, without having to blow a whole lot of cash. I have so many other mods for this car I wil be slaving away for.