What you do is tape the cable housing up to the bottom of the brake handle hood, and sort of towards the inside of the hood. Now you let cable escape from the tape. Another way is to tape the cable housing until the bar starts to curve upward from the lower "flat" hand position, then let the cable go straight out and continue wrapping the bar. The third way is to tape the cable housing all the way to the center of the bar where the tape normally ends and where the aero lever brake cables come out of the tape.