No issues so far. I took it to a car electrician and he installed it for me. Very satisfied with the purchase of the camera and this extra kit.

Easy connection. It is good to test it first with a multimeter and at the same time look at the car's manual. Because I don't know much, he told me the time so I can understand things.

Easy to install (basic knowledge of electronics required) and works without any issues regarding the car battery. I recommend it.

Although I connected it correctly, the camera turns off when I remove the key from the ignition. If I press the button before exiting the car, then it starts recording for a day and then stops again. I don't know if it's the camera or something else causing this.

It does its job as it should, you just need to find suitable "thieves" for the insurances so as not to cannibalize the cables

Pay attention to the installation! Watch a video on how to install or consult a specialized automotive electrician.
You must correctly connect all 3 cables: continuous power supply, grounding, and power in acc mode. If you don't connect them correctly, your battery will drain or your fuses will blow.
It is important not only for the cables to be connected to the correct fuses, but also with the correct polarity.

It requires a little attention during installation, but it can be done by untrained personnel. There is a video on YouTube.