Ok this is what i did on my 2000, which has the same radio as a 98 i think. The radio tuner and amp are in the back left wheel well in the trunk. I went to circuit city got a 10 sony mp3 charger and a soundgate Interface cable and a sony to ford cd charger interface. Togerther without the charger the cables cost about $80 The box says it will work on 1995 factory radios that are in the trunk. The only thing is when you have a mp3 cd in it and u r on song 100 plus it show only last 2 digits on the display(song 135 it show 35). It works with all of the factory buttons on the radio.