How to play music through my Sony sound system?

I purchased a standard auxiliary cable from Best Buy as well as a 1/8 to 1/4 converter for plugging into the headphone jack. My question is how do I go about playing music from my computer/iPod/iPhone using the auxiliary cable and/or the converter plug? Just as a side note, plugging in the auxiliary cable to the converter and putting it in the headphone jack alone didn't work at first.

Where is the home button on an Iphone 4 G?

I would like to speed up my phone because it's getting slower and slower and I read that shutting down applications would help, but to do this I need to go to the "home" button. I do not know where the "home" button is, but I fear it's inside my phone? I'm hoping not. Can anyone help?

Virgin Mobile iPhone replacement screen?

I have a prepaid iPhone under Virgin Mobile and my screen is cracked. I was wondering where i could buy the screen for it because I could only find screen parts for sprint/ AT&T etc.online.
Also, would a Sprint replacement screen work? I know that sprint is in the same network as virgin Mobile.

Twitter won't let me sign in on my Laptop?

Its always allowed me to but all of a sudden, It asked me to log in so I tried. I've got the remember me box ticked so all the stuff I needed was in there ready for me just to press 'sign in' but its randomly told me that my Password 'Wrong Username/Email and Password combination' but everything should be fine with it! So I tried a few more times and occasionally it asks me to fill out a 'Are you human test' which I'm sure I get correct but it just brings me back to the signing in page? I can still use Twitter on my iPhone but it's a lot more practical to use my laptop but it won't work recently? Can anyone hekp me out here? Its really annoying me.

Should I trade in my iPhone 5 and get the 5S?

I have an iPhone 5 and it's in pretty good conditions. It's not broken, no scratches, everything works. I was wondering if I should trade it in or not. I want to in order to get the iPhone 5S but will it do anything to my contract (cancelation fee, new contract, new phone number, etc.)? And when I trade in my iPhone and get the store credit, could I use the store credit for other things? Should I trade in my iPhone and get the credit or should I just wait until next year when my contract is up?

Iphone keeps showing a circle instead of 3G?

I have a iphone 4 on tesco. I'm currently in cornwall. When i phoned them they said there isn't 3g in this aread but the phone should work on 2g. I've turned off 3g but my internet still won't work. Can you get internet on an iphone when the circle is up the top instead of 3g. Please answer

My car is making loud noises when I plug in IPhone to cassette adapter?

So I have a cassette adapter and I used to play music on my iPad all the time, now I have an iPhone and I'm trying to play music with that but when I plug it in, my speakers start freaking out and sounds like I'm getting really bad static, is this cause of 4g or something? And is there a way to fix it?

I WANT TO CHANGE MY IPHONE 4S

I want to change the color of my iphone. Where is the best place to get the kits of it?
anybody know the cheapest place to get them?