I could use some sound advice. I am purchasing a new GMC Crew Cab (4-door) pick-up and haven't bought any eq. since my youth 20 yrs ago, (Nak. deck, bostons sep, Harman amps etc.) any way, I haven't got a clue. I am thinking of Utopia's 165 W3's in the front doors and was wondering about the rear doors. Would the same be too much for a crew cab. I am also thinking of an Eclipse avn 2494 for the head unit. I don't know much in the way of amps. Should I go with the Focal 33Wx Sub. I am not looking for loudness or vibration. I am hoping to get that inner deep bass that does not distort or hurt year ears but fill in the whole thing and moves you to near tears. Should the sub be in a sealed box or vented? I assume seperate amp for the sub. Please advise what I should consider. This is the first gift I am buying myself in quite a long time - too many hours driving/working - not to!