USB connection stopped working in fiat grande punto?

I have a 58 plate fiat grande punto and have had it for about 3 months and last month the USB stopped working. I used to plug my iPod in to play the music from this. Now when I plug it into either of the USB ports it just says connected but when i change the source on my steering wheel I can't find the 'USB' source. Also when I plug my iPhone in, it vibrates when I first put it in but it doesn't actually charge at all.

Anyone got any ideas of what's going on, and got any suggestions of what to try?

How to start anew on iTunes?

So recently got an iPhone 4 for Xmas, after getting more accustomed to it I decided I wanted to get some music onto it. Unfortunately when I got onto my computer my iTunes was a clustered mess of horrid music added by other members of my family. I want to start again on iTunes with only the music I like and nothing else, how can I do this?

Why won't iTunes 11 install?

I recently bought an iPhone 4, but it won't connect to my current version of iTunes (10.6 or 10.7, I think). I went back to the shop I bought it from and they told me I needed the newest version of iTunes. I had tried downloading iTunes 11 when it first came out, but it kept giving me a message close to the end of the installation saying it was "rolling back". I didn't really mind then because I didn't need it. Now I need it, and it still won't work. I uninstalled my current version of iTunes in the add/remove programmes, and deleted every single file to do with it. I searched "iTunes" in the Local Disk (C. Folder, deleted everything bar the iTunes 11 setup file. I tried to install it after all of that, but it's still giving me the "rolling back" message.
Does anyone know what I could be doing wrong?
Any help would be really appreciated! Thanks.

Added (1). Sorry about that, my laptop uses Windows 7 Ultimate, my phone's iOS6.

My snapchat won't let open snaps?

I have an iPhone 4 and when I get a notification either on my lock screen or a banner, I click on it and snapchat opens but there's nothing there. I've tried reinstalling the app but I got the same problem. My friends send me snaps all the time and I never seen them there. Any help?

Activate an iphone on AT&T without a data plan?

I recently upgraded from a 3G to a 4s and decided to give the 3G to a friend of mine since she wanted a iphone but didn't want to spend the money. Anyways, she doesn't have a data plan with AT&T since she was using a basic phone. I'm wondering if I could just stick in the sim and turn off data usage before AT&T gets any usage charges or would she need to get a data plan?

What to do after spilling nail polish on Iphone 4?

I accidently spilled nail polish into my iphone 4 speaker while i was playing music. I immediatley turned my phone off. I just need help on what i should do now. Please Help! Thanks.

Added (1). I spilled nail polish REMOVER in my iphone speaker

Iphone 4 tv out not playing youtube?

I have an iphone 4 with up to date software.
If I plug my old ipod touch into the tv using an apple cable, I can play youtube.
When I plug my Iphone in, I can then go into setting and change it to PAL, so the cable is fine, I can play videos from the phone on the tv, but youtube only plays on the screen of the phone, all of my friends are having the same problem so the old ipod is getting passed around. Some help please.