Or is you persevere with the suction mount, try mounting it in the bottom right corner of the screen and feeding the power cable under the steering column (tucked in of course) and into the cigarette lighter. Works for me.
I actually hard-wired an extension cigarette cable adaptor and fed it under the trim on the transmission tunnel, under the driver's seat and exits just next to the seat runner. I can then plug the sat nav into that and the cable is almost completely hidden.