hi, pls i have the pioneer djm 700, a midi cable, and i use a macbook pro alonge wit ME 2.7.0, the thing is when i try to midi map it, it doesnt work, i have tried severally to midi map the cross fader. pls give me detailed instructions as to how to midi map the mixer, note, the midi/usb just shows a single light unlike tutorial videos i have seen that shows 2 lights of which one was blinking. thanks