Not sure about those others you named, but I know the Razr is a Motorola phone. I seem to recall the ULF modules in BMW's are designed to work best with Motorola phones. So maybe try one of those?
Failing that, maybe replace the ULF with a newer version, which may be more versatile?
Dave
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2003 4.4i (The X5 is WAAAY more fun than my Jeep used to be... )
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