ArmorAll is the worst thing you could do and is likely what caused the squeak in the first place. Once it dries out, it leaves a very high friction residue that is hell-bent to squeak. Who likes that glossy, greasy, dust-magnet look anyway?
Here's how I fixed it:
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07 RS4 Daytona Gray Pearl Effect
Silver Nappa Leather, CF Trim
Modded by: quattro GmbH
De-flapped, de-resonated, & de-sunroofed
Countermeasures: Lidatek + V1
Winter: 18"x225 Dunlop WinterSport M3
07 Ducati 1098S Superbike
Countermeasures: V1
CycleWorld Aug '07: 9.79@147.12mph
08 Triumph Sprint ST 1050
Countermeasures: V1