Is there an FM transmitter that works?

[opticalserenity]

So far, every one I've bought can charge, but not actually transmit audio using the iPhone. I know I can use generic ones, but I want one that can charge at the same time. I'm on duty for 12 hours and the battery won't last that long unless I keep it charging as well.

 

[kwjohns]

The DLO TransDock works but I had a bunch of interference and static so I returned it to Apple. I'm just going to get a car stereo with iPod integration.

 

[Macgic]

I have a monster one that plays and charges too. though you get an annoying thing pop up saying that the iphone doesn't support the device and that you should turn on airport mode. though i never do. http://www.monstercable.com/mpc/productPageMPC.asp?pin=3233&section=ipod

 

[martymcr]

So far, every one I've bought can charge, but not actually transmit audio using the iPhone. I know I can use generic ones, but I want one that can charge at the same time. I'm on duty for 12 hours and the battery won't last that long unless I keep it charging as well.

I've got a Griffin iTrip Auto which seems to work OK apart from the popup message and the odd 'blip' every so often as the phone communicates with the network.

 

[autumnsong]

I had a new Sony stereo installed. It didn't cost much more than the FM transmitters, and it works perfectly. It even came with the connector cable. And when a call comes in the music fades out. I'm very happy with it.