Just bought a 2014 Kia optima, and i love it but it's the basic package and i need some slump.

1: What is the Year, Make, and Model of the vehicle - 2014 Kia Optima LX
2: What is your budget? 500-700
3: What exactly do you want your outcome to be? (Good sounding music, or loud bass?) Super loud crisp highs and mids
4: And specific sub sizes that you prefer more than others? A single ten or twelve in a bandpass
5: How much trunk space do you want to use up? Doesnt matter.
6: What type of features are you looking for in a CD Player (aka Head Unit)? (Ex: USB, AUX, BlueTooth, etc) Bluetooth is a plus, but simple aux or usb is fine.
7: What type of music do you listen to? Rap, Funk, Oldies
8: Is your stock stereo system amplified? (You may or may not know this) no
9: Do you have Steering Wheel Controls? (Volume/Seek on the steering wheel) no

thanks for the help.

5 to 700 isn't Gunna get you far bud... And bandpass out the trunk is tricky to get the tuning right imo.

Unless you wanna go with low to mid quality stuff.

You want, touch screen deck, single din?
How many volume control options do you want, 9 band 8 band 3 band equalisers? (I suggest 8 or 9 band so you can fine tune the miss highs and bass)

i'm okay with mid tier, i had four infinity 6x9 speakers in the back of my cutlass paired with a single 12'' sub and i think that was perfect for me. i suppose infinity is considered mid grade, maybe low? i'm no expert.
single din 8 band i suppose. i'll take whatever recommendations you have .. if need be over 700 is okay. i mean to an extent. thanks