You should be able to no problem, I’m running both. You can hardwire your Dashcam to the drivers side kick panel where the fusebox is, some companies sell hardwire kits for their camera or you can make your own.
As for the radar detector you can also run a hardware kit to the fuse box. I personally didn’t want to run two separate cables to the fusebox so I instead purchased the MirrorTap kit alongside a BlendMount for a nice clean install. This allows the radar detector to be powered by your auto dimming rearview mirror. Since my Accord doesn’t have a auto dimming (I believe only the touring model has that) I tapped into the power connector of the CMBS camera just above the mirror. Works flawlessly and looks super clean.
BlendMount and MirrorTap combo can be pricey but I’m my option it’s def worth it. I also use a sunshade when it’s crazy hot here in SoCal and since my radar detector now sits nicely tucked below my mirror the sunshade clears the detector no problem.
Heres how it looks, I have a Uniden R7 Radar Detector and Thinkware U1000 Dashcam
Hooking up power using MirrorTap for Radar Detector.
U1000 Dashcam sits to the top left of my rearview mirror, doesn’t obstruct my view. Radar Detector mounted using BlendMount for a nice seamless look. Notice sunshade clears no problem too!