In April, I got the Monster Cable FM transmitter and last month it died. I would leave it plugged in to the power port in my vehicle and occasionally the display and the tranmitter part would stop working and I would find the unit felt very hot. It would still charge the iPod just fine. If I unplugged it and let it cool down it would start working again. Now it has completely died.
Needless to say, I'm disappointed with the durability of Monster Cable's product.
Can anyone point out a website with indepth reviews of other iPod FM transmitters that cover the easy of changing the frequency, durability, signal strength, and other features/factors? Or maybe share their own successes/failure with the FM tranmittters?