How to connect my iPhone to my chevy volt?

I would like to play my music in my car without using the usb cable and simply use the Bluetooth. How can I have my iPhone/iPod connected to my car without the damn cable?

IIm thinking of buying a used iPhone 4s?

IIm thinking of buying a used iPhone 4s and I don't know if it's stolen or not and don't know how to check and I just want to be sure because I've heard stories, it has the iPhone 4s box with it along with the charger, also it's on the set up screen still where it says the big giant "HELLO". And also, because it's an iPhone, can I set it up without using a cell phone plan and just use Wi-Fi 24/7?

Should I get the 64GB or 128 GB iPhone 6s?

Well I have been saving up my money to get myself a new phone, and I now face the question on which amount of storage space I should get. I know I will have a lot of Apps on my phone, and pictures too. I was going to settle for gold 128GB in order to have enough space, since they were out of stock in Rose Gold 128 GB. However I do not mind settling. The price of each doesn't matter, I was just looking for some opinions.

Why am I obsessed with my electronics?

I got an Iphone 5s, Ipad Air 2, and a Hp windows 8.1 laptop. I'm on it like all day and I don't get out much except to go to the store. But that's it. Any ideas?

Why are people calling me from other places?

I have an iPhone 4 and my phone service is virgin mobile. People from other countries, states, etc have been randomly calling me and I just don't answer the phone call because I don't know those people, like last time someone called me and I didn't respond back a course, two or 3 minutes have passed and the person that called me texted me saying this "call me, it's important". Why are strangers calling me? How did they get my phone number? Maybe I should either change my phone number or get another phone. I want to know why.