in 2006 mountaineer in the fuse box which fuse number is for the radio
this is imposssible to see, maybe you can print and enlarge
better yet ..........http://www.motorcraftservice.com/pubs/content/~WO6MNT/~MUS~LEN/41/06 mntog1e.pdf.........page 240
Looking for a Used Mountaineer in your area?
CarGurus has 1,439 nationwide Mountaineer listings starting at $995.
Search Mercury Mountaineer Questions
Mercury Mountaineer Experts