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How-to

Hardwire a dash cam properly

Fuse choice, earthing, and the 12.0 V cut-off setting.

Hardwire a dash cam properly

A tidy hardwire install that will not drain your battery, in about 45 minutes.

Tools required

Tool one, tool two.

Before you start

The warning that saves someone a repair bill.

Step 01 — Pick the right fuse

What to do, and what it should look like when it is right.

Step 02 — Run and hide the cable

What to do, and what it should look like when it is right.

Step 03 — Earth it properly

What to do, and what it should look like when it is right.

Step 04 — Set the voltage cut-off

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.

Everything here was bought, fitted and lived with.

No review units, no press trips, no scores traded for commission.

How we test