For the hard wire kit installation:
Step 1: Open the fuse box (different location of fuse box with different car), test the continuous power, which means there will still be electricity even if the vehicle starts off.
Step 2: The red wire with the correct fuse adapter connect the positive electrode of continuous.
Step 3: The black wire connect the metal (negative electrode).
Step 1: Open the fuse box (different location of fuse box with different car), test the continuous power, which means there will still be electricity even if the vehicle starts off.
Step 2: The red wire with the correct fuse adapter connect the positive electrode of continuous.
Step 3: The black wire connect the metal (negative electrode).