The new product line from BlackVue 750X series has an integrated battery monitor for recording in parking mode. I installed 750X-2CH-32GB in my MX-5 RF under the rearview mirror.
The rear camera attached to the wind blocker.
This camera set comes with a new power cable, with 3 wires to connect to battery power, ACC power, and ground. Unfortunately, the new power connector is not compatible with the previous 750S series. I modified supplied cable to connect it with a rearview mirror harness.
In parking mode, the camera can record in time-lapse mode or activated by an accelerometer. With a setting of the battery limit of 12.5V, I had 2-3 hours of time-lapse recordings.
I have a 32GB SD card option, with the highest quality settings it is enough for two hours of recording.
The previous owner already installed the CarPlay hub and SmartTop module, but no backup camera. Visibility in this car is not great and I think the backup camera is very essential. For the experiment, I ordered from Amazon a low-cost camera with dynamic guiding lines. To install this camera I need to drill just one small hole (8mm) and attached the camera with the provided 3M tape. It is possible to use a special nut for securing, but I lost it during the installation process.
The camera has a small round 4 pin connector, which makes cable routing very easy. Using a 15″ extension cable with the same round connectors I routed the cable to the CMU. I don’t want to use an extra harness just for the camera, so I soldered female terminals to the 2 power wires and 2 for video and inserted them into the 28 pin connector (main car harness). Camera by spec designed for 12V power, CMU unit provides 6V and it is not an issue, because the camera itself needs just 3.3V. Everything works fine with 6V power.
Guiding lines are simulated, the camera has an integrated gyroscope. I don’t think it is very practical but looks cool.
Installed trunk lid liner, which I designed three years ago for the MX-5 ST. Apparently, the RF trunk opening is a little smaller, so I need to trim a little bit to make it fit better for RF. Picture shown ST version with RF.
Next upgrades will be window controller, OLED display. Work in progress.