Bee R rev limiter install on RB20DET

[GabeDiaZ27]

So I recently installed a Bee-R rev limiter on my rb20 and had a question. If you know how to install these there is 4 main wires to hook up. Power, Ground, and two others (one green and one yellow) for the signals. anyways I just cut these wires from the ecu and connected them directly to the bee r unit. so far everything has worked fine as far as I can tell. Recently though I have read not to cut these and connect them directly to the bee r but rather splice into or "Piggyback" onto them or at least onto the signal ones. Can anyone who has installed one of these please verify what I should do? I tried it both ways and couldent tell a difference, Thanks!