Audio in for 2001 Chevy suburban?

I have a Chevy 2001 suburban with a stock stereo system and radio. I've noticed an auxiliary button along with cd and wondered if there's a way to wire an audio in Jack. I just want to play music from my iPhone (already have radio transmitter, not happy with quality). If there's a simply way, please let me know, nothing too technical, a few basic connections at most, I have wire and a soldering iron, as well as audio jacks. I'm too lazy to get into a deep online search lol.

Should I update my iPhone 4 to iOS 7? - 1

I didn't update it to 6.1.3 or whatever the previous one was, because other people in my family updated it to that and said it messed up the Wi-Fi.

Is the iOS 7 better? I just have iPhone 4, NOT 4S. I heard some good reviews but I haven't seen very many reviews about it on iPhone 4.Is it a good idea?

Yes I will put all my apps and songs on my Mac so they aren't permanently deleted, I'm just asking for reviews on the IPHONE 4, NOT 4S OR ANY OF THE 5's!

Also, since I've never updates before, will my games be restarted when updating? Like after updating if I put it back on the phone will progress be restarted or will it be the same? (I have an app called campus life where you don't have a username or pass, and I'm pretty far into it and I don't want to lose my progress)

How should I start a game development company?

I've been told that with enough money, I could invest in the formation of my own company. What I would want is to start a game-making company geared towards developing games for consoles rather than iPhones and PCs.

Added (1). What about from a money-related point of view?

How to unlock Iphone 4s thats still under contract?

I have an Iphone 4s and I called AT&T to request the unlock code but they would not give it to me because my phone is still under contract. I will be traveling abroad and I want to use the local SIM card in my Iphone, so is there any way I can legally unlock the phone without voiding the warranty?

I'm being drug tested but I can't stop smoking weed

So I'm 16 a girl and recently got arrested for theft of an iPhone I found then sold. I'm being put through this program and the women told me during this month she'll be giving me random drug tests. Uh oh I love my weed! What can I do cause I know I have no desire to stop smoking I need it for not only the bliss but stress. No I don't need rehab I ain't trying to quit! It does no harm to me. I'm just put in this situation with the law for the month I need to scheme… What shall I do:/

Isn't the IOS 7 camera annoying

Just updated my iPhone 5 to IOS 7 and I hate the new camera I liked the old one where you could hold down the button to make it focus just like an SLR proffesional camera but now if you hold the button down it takes like twenty pictures of the same thing! Is it annoying anyone else?

How to buy an unlocked iphone 5s in new york?

Well my brother is going to new york for a week and i want to buy an unlocked iphone 5s because the price would be about 200 pounds cheaper than in england ($749 to GBP).
I went onto their website but couldn't find any iPhone 5s' that are unlocked

Where to buy iPhone 5s online (Unlocked)

Apple website sells locked iPhones ( locked to US carriers) so it won't work here without jailbreaking and stuff.

P.S. I'm currently in Saudi Arabia if that will helps you answer.