I just bought a Snooper Syriu. Didn't fancy using the windscreen sucker mount, so got one of their adapter mounts (£7.95 for a bit of bent metal) I & screwed it to my existing Brodit pro-clip.

Meanwhile, the charger cable is hard-wired Jeff-style. I had a four-socket 12v adapter wired into the fuse box. The cable is fed under the driver's side lower dash panel, & plugged into one of the sockets.