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- 2018, Mazda, CX-5, Snowflake Pearl, Grand Touring
sm1ke has the right idea.
I've been running BlackVue cameras for several years ... currently the 750s front and rear in both my CX-5 and my Miata.
Very small form factor and superior video.
These dashcams don't have batteries; only a capacitor that powers them long enough to save the "current" video clip when shut down.
For both cars; I use a "PowerMagic Pro" box that taps into the fuse box in two places ... one constantly "hot" and the other powered only when the ignition is on.
When its switch is "off" the box powers the dashcams only when the ignition is on.
When the box switch is "on", I have it set to maintain power to the dashcams while the car is parked.
Timing and voltage are selectable ... mine is set to keep the cameras powered for 12 hours or until the battery voltage drops below 12.5.
After 12 hours or if the battery voltage drops too far; the cameras are powered down.
This combination has worked very well for me and I've recommended it to friends who have followed suit.
Yep, I'm using the exact same set up only using Thinkware F800 cameras on both of my vehicles.
The only thing I did differently on both vehicles was to put in a cut off switch in the main hot wire so that when I am parked for an extended period of time in the garage, the entire system is off.
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