If my iPod (3G 20gigs) has the iTrip plugged in and isn't docked to any charger the iTrip will work perfectly. But as soon as I dock it to a cradle or my car charger the iTrip led immediately turns off and it stops transmitting.
I thought my iTrip was busted since the connector is pretty loose and can be wiggled around. So I just bought a second iTrip which has the same problem. So it's definitely a problem with the iPod.

Anyone else experience this? Find a solution?

Thanks!