Where you put the mount affects legality, phone temperature and your sightlines.
Tools required
Tool one, tool two.
Before you start
The warning that saves someone a repair bill.
Step 01 — The legal position
What to do, and what it should look like when it is right.
Step 02 — Heat and airflow
What to do, and what it should look like when it is right.
Step 03 — The mistake that cracks screens
What to do, and what it should look like when it is right.
If it goes wrong
The two or three most likely mistakes and how to undo them.