that is a good site to pull recalls and tsb's from, great thing about that site is it's public, anybody can go on it. i get most of my info from a internal non public ford website for dealer personal so i can get tech tips and dealer messages that are non public
99 percent of the time it's the tie rod ends causing the squeek. check those first. sometimes the tie rod ends sound more like a creaking unlubricated sound while turning. i highly highly recomend you replace the tie rod ends first. they go bad often and can fail without even making the squeek/creeking noise.
TSB
05-14-3 SQUEAK/CREAK NOISE FROM STEERING RACK WHEN TURNING
Publication Date: June 30, 2005
FORD: 2002-2004 Mustang
This article supersedes TSB 04-24-8 to update the Action.
ISSUE:
Some 2002-2004 Mustang vehicles may exhibit a squeak or creak type noise when turning.
ACTION:
Replace both power steering gear tube brackets. Refer to Workshop Manual Section 211-02 Steering Gear Mounting. Tighten the steering gear mounting fasteners to 52 lb-ft (70 N-m).
PART NUMBER PART NAME
E5DZ-3K620-A Bracket
WARRANTY STATUS:
Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
OPERATION DESCRIPTION TIME
051403A 2002-2004 Mustang Replace Power Steering Gear Tube Bracket (Do not use with 3504A) 0.8 Hr.
DEALER CODING
BASIC PART NO. CONDITION CODE
3K620 16