Should I sell or unlock my iphone 4?

My recent carrier for my iPhone 4 is AT&T and the bill is extremely high. I can't pay it at the moment. So I was going to just sell my iPhone 4 8gb so I can switch to either tmobile, boost or metro pcs. Basically something drastically cheaper than AT&T. Another thought was to just get my iPhone unlocked and jailbroken so I can use a cheaper service and keep my iPhone. Which sounds like a better idea?

Vehicle Protection: GPS tracking without breaking the bank?

I plan to purchase a new vehicle in the next month and was considering ways to protect it. I was curious if there's a smart, simple and cost effective way to do so. I'm thinking of something similar to Find my iPhone which grants the ability to locate the device on a map. I live in a questionable area and want some piece of mind knowing that if my car where stolen that I could locate it.

Let me know what you do to protect your car and what systems you have in place.

All my displays on Peugeot 307 are gone. How to reset?

Recently purchased Peugeot 307 SE 2004 model which has normal cassette player and 5 CD changer. Thought of installing Aux-in cable to play music on my iPhone. I bought aux-in mini ISO blue adapter from Radio World. I removed of radio and cd changer and removed already connected mini iso blue adapter from radio and disconnected the cd changer. I plugged the 3.5 jack to iPhone and played the music. But no sound on car speakers. Really fed up. Suddenly a red wire from the mini blue adapter touched on the radio copper plate and get shorted. All displays on trip computer, dashboard (speedometer) displays, no air con, multi function display (FMD), hazard button.central locking key button next to hazard button gone OFF and not working.

I TRIED OF DISCONNECTING THE BATTERY AND CONNECTED AFTER 15 minutes. No luck

COULD SOMEONE Please Help ME ON HOW TO GET BACK All MY DISPLAYS ON MY CAR.

How to play music in my car using an iPod/iPhone?

So my car doesn't have those plugs where you plug your iPod in and it plays your music. It needs a ___? I don't know what they're called and my family agreed to buy one. I don't need a speaker or anything. I want something that will connect to my car so it will play throughout the entire car. Please don't answer those music playing boxes…

This is a really simple question tbh. I'm just forgetful and forget what those things are called >.< Adapters of some sort. But i need the full name.

How to transfer non-purchased music files from PC iTunes library to new Mac library?

I recently bought a new MacBook Pro, and I used iTunes Home Share to transfer my music from my iTunes library on windows to the new one on my Mac. I should have 569 items now if everything went as planned, but the one on my Mac only got 359. My guess is that the non-purchased files weren't transferred and that is why.

Can you tell me how I can transfer everything both purchased and non-purchased to my Mac so I can sync my iPhone without risk of deleting everything? I'm going off to college soon and won't have the ability to do this without my PC at hand.

Iphone 4 on an endless restart loop, how do I fix it

I have jailbroken my iphone 4, and when my 3G stopped working I reset my network settings and my phone turned off and is now stuck on an endless loop, any advise? I tried hard resetting it, and there isn't enough time to do it…

Should I buy an iPhone 4S or the new iPhone 5?

I currently have the iPhone 3GS and it is just not running correctly and it's time for a change. I'm debating weather I should get the iPhone 5 or 4s… The 4s is now a little cheaper now that the 5 is out. But I'm not too sure. Another main reason for switching is that the new iOS 7 will be coming out and it will not function on the 3GS. So I'm not sure which one to switch to.