Hey all...I have Nextel and had lots of problems with them..However Wilson Electronics makes a cell phone amplifier that installs really easily in your truck. They make one for just about every phone out there and they work really well. I live in a rural part of michigan where I never had good cell service once I left the freeway. Now that I have the amplifier hooked up, I havent lost service yet. Always have full bars when the amplifier is on. It only works when you start to lose your signal from your carrier. Then it kicks on and boost the signal. They aren't cheap. Think I paid around $300.00 but it was worth every penny. Plus I needed an extra tax deduction..