iPod accessory-maker Griffin Technology on Friday began shipping its popular iTrip FM transmitter for the second generation iPod nano. According to Griffin, the new iTrip has been redesigned to “fit the sleek lines” of the new iPod nano. The iTrip allows users to play their iPod music through the car stereo or home stereo system. Among its other features the iTrip has DistortionFree technology, which provides automatic volume adjustment for the cleanest possible sound. The iTrip is available immediately and costs $49.99.