Connecting Technics SL1200 MK2 to DDJ-1000

Just got my first turntable (ref. above) and pretty much looking for advice on how to connect it to my DDJ-1000 as a third deck. I want to connect it to channel 4, tried connecting the RCA cables but when I tried that the Technics turned off, and I don’t want to mess anything up or damage it.

I’ve read that the MK2 needs a preamp, but does anyone know how I would go about connecting the preamp to the DDJ1000? I want to use the 1000 as my mixer, I know I still have to connect my computer and such but still. Anyways, curious how people have done this before, any help would be super appreciated!!