My2003 Nissan Maxima SE
My factory upgrade, I did not have the Bose system, and I did not want to take up the trunk with a big box an amps etc, so I put together a simple system that sounds great with nice punch.
Front stage 6.5 MB Quart components
Passanger doors MQ Quart 6.5
Sub 10" Bazooka 4 0HM DVC
Sub amp Power bass ASA 300.2
kept the factory radio because I like the stock look, just used a PAC OEM integration unit just plug and play no cutting. It has 2 sets of RCA's just using the rear output for my sub, and the radio for the front and rear speakers.
very happy with the simple clean install, just used some dynomat around the speaker rings did not want to go crazy.
I am upgrading the amp to a Hyfonics Brutus because it has a subsonic filter adjustable and the slope is 24db instead of 12. also it is 4, 2 and 1ohm stable, I will use the DVC to get a 2 ohm load and get 300 RMS, in the future I may do a small amp for the front and rear speakers.
Showed my friends who have really over built systems too many speakers amps caps and all the fancey stuff, Got in my simple install and they were pretty impressed.