Timestamps in Description!
I believe dashcams are super helpful in case something happens to your vehicle, so naturally I installed a higher end, hardwired Thinkware U1000 + Battery system into my family's BMW G26 chassis i4 EV. This install guide works pretty much for any of the G2x 3/4 series cars, and the G80 M3.

Index:
0:00 Intro
0:30 Thinkware U1000 package overview
2:02 Cellink Neo package overview
3:42 Thinkware U1000 setup
5:28 Front camera placement
8:21 Camera wiring to passenger A-pillar
11:33 Passenger footwell panels removal
14:08 Front fuse box & fuse map
16:04 Running wires to B-pillar & length needed
17:56 Rear seat area panel disassembly
20:44 Running wires to C-pillar
22:45 Rear trunk/hatch panel removal
25:21 Running rear camera wire to hatch & camera placement
27:08 Rear hatch panels installation
28:27 Running wires to trunk cubby & rear fuse box
30:58 Rear fuse box overview
32:01 Rear ground lug placement
33:57 Add-a-fuse installation to rear fuse box
34:40 Cellink placement & trunk panels installation
35:27 Rear seat area panels installation
37:23 Front seat area panels installation
40:17 Final rear trunk/hatch panels installation

*Affiliated Links
Thinkware U1000 Dual Channel Dash Cam: https://blackboxmycar.com/9bc4e
Thinkware U1000 Dual Channel + Battery Bundle: https://blackboxmycar.com/65a2f
Extended Hardwire for Rear Fuse Boxes: https://blackboxmycar.com/1a5bf
BBMC Powercell Dashcam Battery: https://blackboxmycar.com/41030
Fuse Tap Kit: https://amzn.to/494rtat
Trim/Pry/Pick Tool Kit: https://amzn.to/3TPgmO0
Auto Fuses Kit: https://amzn.to/4a8rafU
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DISCLOSURE:
Some of the product links on this page are Amazon/BlackBoxMyCar affiliated so I earn a commission at no extra cost to you. Thanks for your support!