I won't recommend anyone under warranty and still concern of vehicle warranty to do any OBD or fusekit hardwire anyway unless it is done under the car manufacturer service center under manufacturer warranty.

I am actually also concerned initially on using OBD for my older car's Z50 dashcam. I read most reputable dashcam OBD uses PIN 16 with PIN 4 and 5 for grounding only. They usually don't touch/connect the other pins. PIN 16 to battery should have a fuse. It is not likely to damage ECU. Although many ppl say can damage, is there any record of DDPAI dashcam or any other dashcam that actually blowout the fuse and ECU? I can't find any record on that except for warning that it might but some expert say if the PIN usage are above, it won't. So many conflicting view.

Since mine is an older car with no warranty issue, I tried DDPAI Z50 with its OBD plug. The OBD seems to have some extra safety features on it tho none mention protecting the OBD short. I doubt any will mention that. Heard many tho have used OBD ports without issue, also the accs shop owner installed so many liao...so I just take the plunge. So far so good. Battery power monitored with the OBD plugs to avoid dead battery.

However for my new car, I just take the super expensive manufacturer fuse hardwire but with inferior quality vs 3rd party dashcam for parking mode peace of mind and to maintain warranty. That dashcam have no arrive yet, so I see if they have setting like DDPAI, to use parking mode for collision recording only for minimal power drain. Also see if they have battery power monitoring. I myself not sure if not using OBD plug, can still monitor battery voltage?

Actually I am intending to install DDPAI or 70Mai obd dashcam for my other 2 old cars (got experience crash on on my newer one that comes with dashcam), no need argue who right and wrong, show dashcam video, straight we right), so I suddenly realized the importance of dashcam as insurance for proof.

Now the OBD concern was raised again, I am in doubt again, if want parking mode collision recording (years ago, one car got bang while parking overnight, cialat, don't know which drunk driver did that, that time dashcam not available yet). So should I get the OBD as it has worked well with battery voltage monitoring and auto-disconnect power or should I revert back to fuse hardwire.

After reading up more, for old cars, OBD no problem but I would not risk it for the newer car (even after warranty) until I know for sure the OBD did not use PINS other than PIN16, 4 and 6 (power and grounding).

Semua hardwire (fuse or OBD) kacau warranty. Boleh void electrical warranty.

Jika u nak record sahaja, tak payah GPS. Ada GPS just boleh tambak location dalam recording. Nak guna ADAS, mungkin perlu sebab Z50 saya, jika GPS signal tak dapat, macam tak function je ADAS (lead car notification).

You still don't understand what is reserved the right to void, isn't it...it is up to them. You mean to tell me you still doubt they reserved their right to void warranty sweat. 
You are arguing on absolute case that are known. There might those that are not reported online. We don't know. Maybe none.

Ppl are asking if installing 3rd party connected to fuse and obd, can void warranty or not. That means they wanted assurance 100% no void warranty if install.

We are talking about legal point here. From the beginning I am saying "car manufacturer reserved the right to void warranty".

Does that means 100% void if install? I never did say that. I say they can void your warranty (at least on electrical) if they caught you installing and reported to HQ.

SC would likely never report to HQ unless they have to make a warranty claim related to electrical system thru their system, then it is up to them to report the condition of the car related to the warranty claim parts or related section.

I reiterate, the question ppl are asking is if there is a risk of voiding warranty, we say yes, they is a risk even if it is 1%, while you cannot say 100% would never void warranty. The legal clause are there for car manufacturer to reserved the right to terminate certain warranty.

Many installed also no problem, right!!! I also install 3rd party tint and risk voiding the motor warranty. Still I knowingly do it acknowledging that there is a risk but not likely to occur. If occur also maybe no void but there is a risk of voiding the moment I install them. I risked it cause I can still afford to pay for the motor if really kena but if it is related to car electrical and OBD that are even kena car ECU, the risk is too much for me. So I don't take the risk but many do and no problem with that. Legally tho, they are running the risk if get caught.

You can say unplug OBD and remove the dashcam before go SC. Yes, you could, as I say if get caught. That means you are still running a risk to void warranty, that is the main point of what ppl are asking. You can say install lar, if got problem, unplug and remove b4 you go. No problem with that. Still does that not mean acknowledging that if you keep it there during warranty claim related to ECU system (OBD) and electrical, there is always a risk of voiding warranty.

Many dashcam OBD have pin only for the electrical current but exclude the PIN connecting to ECU or other system but don't be surprise some do. Surprisingly DDPAI FB, got ppl kena unstable car system then P2 SC asked to remove DDPAI OBD for the newer axia or some newer car coz it affect the car system. It could mean the dash OBD does somehow access the diagnostic ECU or something, we really don't know. 

I think I let you interpret for yourself the clause in warranty manual. Maybe you can determine 100% won't void based on the clause. Then you are the boss. I admit defeat.

Just use the 12v port, may forgo parking mode then.

Thats why ppl like to use "new car got warranty" as a pillar, but fail to understand the warranty is only as strong as the willingness of the company to uphold it. It isnt written with the customers interest in mind.
My 39year old car has a dashcam, having 1 is better than none at all.

I've been using dashcam for a decade now.

1 incident where the dashcam is useful, would already ROI the cost of it in monetary, time, headache.

hmmm so extreme? I also specifically ask my BYD sales and they ask their Boss/headquarters also say cannot tap or touch any wiring...
so I am just going to install it with the existing USB as the power source.... that should not void warranty.