2010 4 Dr HB - OEM Replacement

[WeiseGuy]

Hey all,

New to the forums and thank you for having me! I've read up on a few topics and was hoping to get some assistance in a newb perspective when it comes to car audio. I've seen some stuff from Derick and SQ and LOVE their setups and experience, read some on BCAE1, been to crutchfield's site and some local shops, and I'm ready to make my purchases.

My issue:
1) I feel like the shop is trying to take advantage of me and isn't understanding my concerns, selling me whatever they can.
2) I read most of BCAE1, but its a LOT to take in and even after re-reading the primer a few times, I was still confused on certain things.
3) I don't want competition sound nor can I afford it. I don't want window shattering bass that can be heard from down the block. I don't want to take away the minimal cargo space we have in these vehicles.

What I would like:

Head Unit: I'm hoping to replace the OEM stereo with a double DIN Alpine touchscreen. Specifically was looking at the Alpine IVE-W530 as I like the USB/Aux (what I use most) and bluetooth. I also think having a DVD in there on road trips may be nice.

Speakers: Right now I just have the stock OEM speakers. No tweeters, nothing else. I'd like to have components in the front, but have no idea nor do I have the experience to install tweeters when there isn't a cutout for them. I plan to ignore the rear deck completely and just push the fader to the front as I prefer listening to music as if I'm at a concert, with it in front of me, rather than all around me.

Amp: Do I need one? My last car had some alpine components and an alpine head unit with no amp and it sounded alright, but I don't know what I was missing with the amp. If so, what should I be getting here? Where can I install it without exposing wires in the cabin or taking away cargo space?

Subs: This is where I am completely lost. I don't want to take away cargo space and a crutchfield advisor recommended a powered sub that I could get under a seat possibly. I'm not sure if I even need/want subs. I do want a full sound and feel that the bass from the subs would be great, but I really am not into earth shattering bass that can be heard rattling cars at red lights.

My request:

Please help me understand what I would need to make a system that has great sound quality, not so much quantity. I want the lows, mids, and highs to be crisp, but I'm not an audiophile so it doesn't need to be competition grade. My budget is something that allows me to start with speakers/head unit for now, and later expand to add the amp and sub depending on total cost.

Thank you so much for any help and please, if you feel I should do more reading on various websites I'll be happy to. Sometimes with car specifics its easier to ask an owner (such as not having tweeter cutouts or minimal space in the cargo area) rather than a car shop that wants to give me 2 12" subs.