Do yourself a favor.. if you don't want a haste pitting the needles back on and have your speedometer off by about ten mph...get a faceplate that doesn't require the removal of the needles.
If you purchase a faceplate that requires the needles to be removed, make sure you mark down the location of each needle before removal. I'll give you a hint on the speedometer needle. You will not get it right unless before you put everything back together you take it for a ride in a safe location as I had to do. Do not have the plactic on the guages. speedo needle removed. First enter into the digital speedo area. Since the little plunger is no longer there, use a pencil (eraser end) to depress the odometer button.
See Link:
http://www.mustangworld.com/ourpics/fcar/dtcodes.htm
While driving I was able to bring it up to 40 mph on straight deserted road at the time and install the needle on the 40 mph. Your Speedometer will now be correct. This is the only way that I was able to get the speedometer correct again. Return home and finish putting your dash back together. this complete process will only take about a half hour start to finish.
Good Luck!
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2004 DSG Mach 1 w/IUP 5 speed (Born on Date: 10/09/03)
Dyno - 1/28/04 (1300 miles)K&N Drop-in Filter, SAE - 273.8 rwhp 302.5 rwtq
Dyno - 3/6/04 (3400 miles)K&N AirCharger, SAE - 282.5 rwhp 312.6 rwtq
Dyno 4/22/05 304rwhp 326rwtq