I have the Motorola dock and custom audio/charge cable (SKN6394A). I am currently planning on using the mount with a different base (Arkon GN097-2-MICRO) that has been modified to use a female USB A connector. I tested this configuration and it works fine. But, the cable is way too long and looks horrible. What I was hoping to do was build a shorter cable. I know I could simply buy a second cable (found one cheap on ebay actually) and just hard wire it to the mount, but I prefer to be a little more flexible.
I guess the simple question is, does anyone have any information on how the connectors are wired? I tried plugging the custom cable into the phone and pc directly just to see if it would blow things up...it did not. However, it does not work as a normal USB charge/data cable. I certainly can use my DMM to check continuity, but I don't know for sure if there isn't something else going on that I would miss. Anyone have a schematic?
If there's a better sub-forum to post this, please let me know. This is the same cable that Motorola is using for other devices, so it might fit better in a general Motorola hacking sub-forum.