OK so, I have an A'Pexi AVC-R boost controller in my truck that I need to install. It asks for an RPM signal, Throttle signal, and Speed signal. Where can I find these wires? PCM or in the gauge cluster? The instructions ask it to be on the PCM's wiring harness...so thats where I would prefer to wire them. But again, if I can wire it inside the cab and have it run correctly I will do this. You see the instructions ask for a precise voltage and I would like to do that because I don't want to change boost and what not on this controller and have inacurate voltages leading to the demise of my engine. Any help?