Check owner's manual. If you don't have one copy and paste link below; www.fleet.ford.com/maintenance/owners_manuals
Fuse # 3 - 25 amp - interior fuse panel
just take the old one out, any car lighter will work
It is a 20 amp fuse under the dash in space 3
fuse # 26 - 20 amp - cigar lighter , diagnostics ( in the fuse panel below and to the left of the steering wheel by the brake pedal )
The cigarette lighter fuse on a 2005 Ford F-150 is located in the fuse box, which is typically found under the dashboard on the driver's side. Specifically, it is in the fuse panel near the steering column. The fuse for the cigarette lighter is usually designated as "CIG" or "Lighter" in the fuse diagram found on the inside of the fuse box cover. Always consult the owner's manual for the exact location and specifications.
Fuse # 3 - 20 amp - for cigar lighter , Data Link Connector
( # 41 ) - 20 amp mini fuse - cigar lighter , diagnostic connector power according to the owners manual
fuse # 3 is a 20 amp fuse for the data link connector and cigarette lighter
The fuse block on F150 2004 and later is located behind right front passengers lower kick panel.
In a 2005 Ford F-150, the rear cigarette lighter fuse is typically fuse number 15 in the fuse panel located under the dashboard on the driver's side. However, it’s always a good idea to double-check the owner's manual or the fuse panel cover for the most accurate information, as configurations can vary.
( # 41 ) - 20 amp mini-fuse - cigar lighter , diagnostic connector power
2004 Ford F150 Remove Front Door Panel and Mirrors2004, 2005, 2006, 2007, 2008, Ford F150 Door Panel and MirrorsFor the 2004 - 2008 - this is the best I found anywhere for removing front doors and the miirrors. It has clear pictures. Took the panel off if 15 minutes or less once I found this.http://www.kwmuth.com/techsupport/pdfs/21000960.pdf