Probably the best one that's worked for me is the power magic pro from BlackVue. Works on any dashcam that has a cigarette socket. You just have to hardwire it into your fuse panel. I wouldn't recommend using the ones that use an ODB2 port as those can be finicky.

https://www.amazon.com/dp/B008B8ERIO/ref=cm_sw_r_apan_glt_fabc_JM1JJ2BMC3P6QZ846ZZH

From the wiki: https://www.reddit.com/r/Dashcam/wiki/index

• Cheap hardwire kit ($5-15 USD)

• In between hardwire kits ($15 USD)

• Expensive Hardwire kit ($24-27 USD)

Also there are dash cam specific hardwire kits:

BlackVue, BlackSys, Thinkware generally have them: googleable.

There are also acceptable 3rd part hardwire kits: (for BlackVue/BlackSys/Thinkware cameras) Like what blackboxmycar.com sells/makes.

There are also VIOFO specific hardwire kits (sometimes good, sometimes not) 3 wire kit - I couldn't find the A129 2 wire hardwire kit any more, perhaps they stopped making it/selling it (which is a good thing)