That’s who is doing mine and fitting some rear speakersYes ... the 412GW 'hardwired' in (hard wire kit another £20 from Halfords). Installed by @Absolut5 (near Salisbury) when they put their Signature Sound system into my van. Highly recommended
I just replaced the micro SD card as they don’t last. I see there is a new specific card available for dash cams which can take the repetitiveness of recording, much like CCTV hard drives.