There are 2 options to mount your TST 507 monitor.
Option 1 (recommended): install our 4 Prong Tab Plate with 20mm Ball Mount directly to the rear of the TST 507.
Option 2: reuse the plate attachment included with your TST 507 (the end piece attached to the suction cup mount) and attach our Action Camera Mount with 20mm Ball.
Recommended Adapter: DiabloM6 Magnetic Device Holder
This is our recommended option which doesn't require the use of any TST components. Our Tab Plate mounts directly to the rear of the 507 monitor and features an integrated 20mm ball mount.
This image shows option 2 for mounting your TST 507 to a Bulletpoint dash mount with the use of the Bulletpoint Action Camera Mount – yes it also works with the TST 507. It requires the use of a connector found on the TST suction cup mount.