Ditto to what Chip, ACR and Bony said. It sounds better, the FM reception is ok at best and AM is pert near useless. CD's and the I-pod work great.
Poor quality AM and FM reception in the FGT is likely the result of the decison to locate the radio antenna in the windshield glass. Stalk type antennas have always been superior in gaining signal and a rear roof mount position, similar to the bimmer 7 series, should have been considered by Ford.
There is nothing wrong with the Mac or standard receiver as evidenced by the high quality sound when playing a CD.
usmcfred