Here is another alternative. Not for a phone but can be modified to work. I was looking for a way to mount my Bluetooth Transmitter. I could have used the power outlet/cigarette lighter but it was battery powered and it wasn't very secure. I wanted an ignition power so I wouldn't have to remove the transmitter with the car not running.
I purchased a power outlet and wired it to the phone connector which is ignition powered. I was debating whether to mount the power outlet in the side panel but that involved drilling. I was looking for a less intrusive method being once drilled, the only reversal is purchasing the side panel. I happened to find this lying around the house. It is a bookend bracket.
This bracket just happened to fit/slide in between the upper console and dash. It was sturdy and secure and removable.
I just bent the bracket to fit and zipped tied the power outlet to the bracket. Kinda hacked but works and looks good from the front.