Visor Mount Bluetooth Kits

This is actually an older review, but I find it relevant because the Roadmaster VR3 sports a flexible Caller ID display.  Some users have complained about the unit's flashing blue light at night, something this review does not mention.  What I'd really like to see is a visor mount Bluetooth kit that comes with a really long power cord that could be routed back to your power port, essentially creating a visor kit that would never run out of power and could turn on/off automatically.  This VR3 is partially there because it does turn on/off with power input, so if you rigged up your own power cable you could make it happen.  The VR3 seems to use a standard Motorola connector, so it shouldn't be that tough to get a custom cable that could be cleanly routed down the A-Pillar and plug into your power source.