It’s hard to answer precisely, I’d say it depends on what kind of dash camera you already installed inside the vehicle. If it’s a budget one, then you can leave it there as it could draw little attraction. Yet if it’s a decent and expensive one, eg. more than US$150, then it’s better to take it off and put in a place where it can’t be easily seen from outside.
Alternatively, if you have little worry about the possible theft, I’d suggest to use a completely new design, it’s called covert or hidden car camera. Instead of a normal suction cup mounted car dash camera, this is one that is glued against the windshield on the supporting base of the rear view mirror. Once it’s adhesive mounted properly, it’s hard to remove. The cable can be snaked into the car’s structure (inside the head and front side door), connecting to car fuse directly which has no dangling wiring straight at the front. Not only it’s not as noticeable from outside, but it’s almost invisible from the driver’s seat which will not intrude into the driving view.
Besides the discreet design, this car dash camera has the powerful features than most similar ones in the market. It’s using a cutting edge AIT processor and Sony sensor 322 to record full HD 1080P sharp & crisp videos. The automatic recording along with ACC ignition start-up saves the trouble of manual switching ON/OFF, and it’s an uninterrupted loop recording all you see and hear, with time and date stamped for verification. Maximum 32G micro memory SD card can record around 6 hours continuously, which can be reviewed on PC. For the smart phoneholics, this car dash camera is embedded with wifi, enabling immediate sharing of any funny footage during their ride. Least but not last, it’s screen & battery free, which increase the lifespan especially when used in the sun cooked areas.
To sum up, if you are looking for a reliable, powerful and hidden type car dash camera which needs zero manipulation to record video automatically each time the car engine is turned on (after the initial setup from your mobile device using free APP), then this is it!