I have the same problem. There is a lot of static on the am stations when the car is turned on. When the car is not running it is clear. Ford sent off the radio to get fixed or replaced. I'll let you know what they say.

98 svt #3967/6535
BOD 10/13/97
itg air filter
air inlet pipe
south country strut tower brace
A pillar gauge pod w/autometer Volts, Oil Pressure. and A/F Ratio
Replaced resonator w/Dynomax Bullet