If OP is seeing this, look at it this way. It’s another part to service. It’s another part to be looked after. Turbos mainly need oil to function properly. Mazda also says before shutting off the vehicle after every drive, idle the car fora short time for the turbo to cool down. Turbos adds power, forces air into the engine more. It’s a method of forced induction. We know any type of power, any force creates pressure on things. However, these Mazda’s are family cars at the end of the day. So these Mazda’s are not pushing much boost overall than say the exotic cars you see on YouTube that does highway pulls or drag races. Mazda’s 2.5L turbo though is quite more strong than the competitors in its segment with their own turbocharged engine, except the Europeans and Americans to some degree. And it’s important to note it’s fuel economy ratings.
Engines though always have forces acting on and in it. This engine both Non-Turbo and Turbo, the 2.5L is made in mass production by Mazda. Its found throughout nearly all Mazda vehicles today with the slight exception of the CX-90 and Miata. The engines has reported issues. Oil issues, cracked cylinder head issues, cylinder deactivation issues, carbon build up, etc. We at Mazda here are lower in numbers. There’s less of us out there, we’re part of a smaller brand. Inturn, you might here more issues reported because those people with issues are more likely to speak out than one who just enjoys with no issues. We also don’t really know sometimes about one person care and use to the car, before they report the issue. Sometimes these issues arise, because of improper care. Sometimes, it’s genuine, and the issue is simply due to Mazda’s design.
I myself don’t have the turbo 2.5L. But, compared to the competitors offerings, I would take the 2.5L turbo, if I wanted something powerful, yet reliable. I think it’s a gamble, but the likely chance you’ll get a flawed Mazda Turbo model is small. I would rather prefer it over any Europeans, Americans. I would even prefer it over Honda’s 1.5T engines, and don’t get me started with Hyundai. But that’s my opinion. Remember, engines go through alot. They give out sooner or later.
I just bought a dashcam just yesterday, thinking of my plan of attack with installing on my CX5, as I bought a rear dash cam, too. I think you either need to compromise with dangling wires out in the open, a 12v system, accept your fate with putting the wires close with these side airbags, which many seem to do tbh. Or you can fish the entire wiring system down the floor, or route the wires near the floor instead of above like many do. I think you still have to fish it through some areas through some of the pillars, but the exposure of much of the wire, in the event of a crash, to you would be near your legs, rather than your neck, I guess.
Edit: I guess still you can do a proper wiring around the airbags, but you’d need to remove panels completely so you have proper access to the wiring behind the panels and airbags. Maybe buy some zipties, too. Also this is why there’s dashcam installers that can professional install dashcams and other stuff for you. I don’t think there’s much risk to routing wires with the airbags around. As long as the car is parked and completely off, the airbags shouldn’t deploy randomly.