Also consider if what is usually called "Parking Mode" is important to you and the additional cost/installation isn't problematic. This allows the camera to record as needed after the car is stopped and parked somewhere. To avoid too much battery drain, this is usually event-based (movement of the car etc). The unit will need to be hardwired to the fuse box or at least connected to something that has constant power (certain accessory sockets) for this to work, and I'd recommend where possible adding something to prevent killing your battery. For example, I used a product from Snap N Go for my Blackvue cam, and that product is relatively cheap and plugs into the diagnostic port and the cam. There are two settings--automatic shut off 5 minutes after the car is turned off, and another mode where it provides constant power but monitors the battery output and cuts off power if it drops too far. Blackvue itself makes a similar protective product but is more expensive (and doesn't use the diag port). I had the Snap N Go in both my last CX-5 and my current one, and it works perfectly for me. There are also tap kits that will provide power to dashcams from any powered rear view mirrors (ones with Homelink, compass etc). I used that with an older cam model I had and that also worked well with no issues and avoided long wiring needs.