GitHub - angusmack/CDJ-1000Mk3-MCU-Mod: A modification to the CDJ1000MK3 using an MCU to provide Nexus like functionality for playback from SD Cards etc.
DIY: Upgrade A 12 Year Old CDJ-1000MK3: SD Card, RGB Waveform, Slip Mode - DJ TechTools
Guy mods CDJ 1000 mk3 to have usb support and adding a new screen : r/DJs