Found out that my DROID 3 dock works great with the RAZR M. Only issue was that HDMI connector that our phone doesn't have. Easy to pop out the HDMI part, just had to find the 4 screws under the rubber feet, and once inside 2 more screws on the retaining clip. Then just pull out the cable, put everything together and the RAZR M fits almost perfectly, just a little close on the left side. The audio jack on the dock works, and the phone recognizes that it is docked as well.
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