After four years with the X90, it seems like there's always something going wrong with the lights—fix one and another breaks. I only added a dash cam to the electrical system.

I recently got an 08 Mazda 2 hatchback, 1.3L automatic. It has been driven 130,000 km over 15 years. I've been driving it for about 10 days, mostly commuting in the city with a round trip of 40 km a day, but the fuel consumption is ridiculously high... After the fuel warning light first came on, I added fuel worth 200 yuan, which was 25.6 liters, and drove a total of 247 km. The average fuel consumption was 10.35 liters/km, costing 0.8 yuan/km. After the fuel warning light, the engine light turned yellow as well, what's going on??? I didn't think too much and just drove to the gas station, asked the staff to fill it up, but it could only take 34 liters before the pump stopped. The staff said it was full. Isn't the Mazda 2's fuel tank capacity supposed to be 43 liters? Why is it full so much earlier, is there something wrong? Looking for help, how should I deal with this? Has anyone experienced the same situation?

After four years with the X90, it seems like there's always something going wrong with the lights—fix one and another breaks. I only added a dash cam to the electrical system.

How about adding an aftermarket sound system? Any recommendations? Also, what about dash cams?

I want to install a dash cam on my 2024 JETOUR X90 Plus manual version. Any suggestions?