Does the iPhone have a feature to balance sound?

I have the iPhone 5 and recently got a kit that hooks up in my car through a plug in the back of the radio originally meant for a cd changer. However when I play music through it, it seems like the sound (more so the vocals) always seem to be louder on the front passenger side speaker than front driver's side. I know when you listen with headphones on it's nice to have different sounds coming out of the different sides but in the car I'd prefer the sound to be equal in all the speakers. Does anyone know if that's possible through my phone?

What is the best iPhone4 carrier for unlimited everything?

I really want an iPhone but I don't want to get it on 1 of those really big companies. I need unlimited everything for about 45 to 60 dollars a month and a must be unlimited talk text & web. I heard about going to straight talk & net10 but I also heard that if you use too much of that data they will cancel your phone. What the heck is up with that. So what I'm asking is what is another carrier that is about 45 bucks a month unlimited everything. Why does Straight Talk do this with the data plan. I want to connect an iPhone 4 doesn't have to be a 4s. Also is the iPhone any good at all because I have an android right now and I really want a iphone i've only had an iPod I've never had an iPhone before and I really want 1 is it really worth going through all the trouble.

Iphone 4 not sending or receiving messages?

I god an iPhone 4 today, complete with unlimited talk and text but a limited data plan. When I first got my phone and charged it, I was able to text my friend for about an hour, and since then it will NOT receive or send ANY texts at all.iMessage isn't working for some reason, it'll just sit there and say "waiting for activation" and won't change at all. I've logged in to my itunes account through it and everything, and nothing. I also backed it up and restored it like most sites said and it STILL will not work. Any tips on how to fix this issue? It's very frustrating, and answers soon would be great. Thanks.
Also, not sure if worth mentioning, when I send a text it doesn't have the exclamation mark near it saying it failed to send, but it doesn't say it sent either.

Added (1). Also I'm on AT&T. I'm not sure if that'd be an important detail either.

How to become an apple developer?

I want to use my knowledge of objective C and create an iphone app. So what do i need to due and what do i need in order to start programming?

Why is my iPhone 4 telling me I have no storage left?

My iPhone 4 is constantly telling me I have no more available storage left. I have deleted more than half of my apps and pictures, I hardly have any left and it still says my storage is full. I don't understand why! It's very frustrating. Can someone help me figure out what to do?

How to find on my Macbook my icloud or where i backed-up my iPhone stuff?

I'm obviously computer illeterate here. I backed up my old iPhone 4 on my Mac Book and now want to Sync that onto my new iPhone 4S. Any websites and as I need to know everything about all of the above!
Where's icloud on my Mac? I'm in iTunes now and I don't see it?
Where's my synced stuff?
How do I get the synced stuff onto my new phone? Mainly contacts but a few games? Maybe some photos?