[nlzmo400r]

Theres been a few threads about this somewhere, may not have been here. Anyway, yes you have to unplug the middle spot. Use a hex wrench to get it out, and then you're gonna need either a bubble flair fitting (out of your 240 m/c) to put in there, or a reverse'd line, to where the fitting is backwards, just on the brake line itself (which would include changing brake lines). So just do the first option