Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to install a pro dj mixer and speakers [title] Unpack your cd-players, mixer, pick-up, and put them in a flat area to start connecting the devices together. [title] Search for your cables that have on both ends of the cable input and output. [step] Normally it comes together with your mixer.

Ending1: However, they must be separated separately to connect now. You might want to plug them into a built in usb port on your mixer to plug them in later. Ending2: A common solution is to type' download windows 4' and the file it is from should come up. [title] If a compatibility gap exists, put your cables through it but keep in mind not to let them touch each other. Ending3: [title] Plug one end of the cable input into your mixer and the other into the audio output on your dj mixer. [step] There you have it, you have built a new professional mixer! [title] Start the mixer by plugging in your usb cable input. Ending4: [title] Begin by plug one red end of the cable in the red place on the cd-player where it says " output ". [title] Start to plug the gray one in the white place.

Answer format: ending1/ending2/ending3/ending4