Installation kit (for the "DC 12V Remote Battery Disconnect Switch").

Before installation. This is Toyota Rav4 5g (2019+) hybrid, and small battery located inside trunk.

Disconnect battery (first minus and then plus too).

Have to remove plastic cover (of minus). Check if enough space to locate power switch.

Plan to connect wires (these are control wires for the switch and it will disconnect minus with the remote control, so it needs all time power for remote control to work and this is the reason why these two additional wires exists).

Tighten.

Hold the nut underneath so it doesn't fall.

Prepare one more black wire for connection (this one for the tracker).

Tighten.

Foil hat for a snug fit.

Clamp in place.

Prepare additional red wire for the tracker (that is separate device apart from the switch and not required for the switch itself).

Test the switch by the remote control.

Connect third wire from tracker (orange one) to the power supply.

Make sure that wire stays on if you pull on it.

Harnesses for fastening tracker.

Ready. After some days of actual usage, can say that solution useful (at least with Toyota cars). The only note that need to wait about 30 seconds after doors close and before disabling battery to be sure that different systems of car finished their job and that regular code-alarm started (switched to close).