I have the Apex'i RSM installed. I followed the ECU pin-out on the Defi website for their aftermarket gauge installs. I initially had an installer attempt to do it and he had no luck. So I took a photo of the ECU and overlaid the Defi diagram and did the install myself. I had marked the installers attempted test splices, and for this I've drawn arrows to the wires you need for the RSM.
I believe there must be two two IGN wires, and two Ground wires into the ECU. The Apex'i VFACII recommends one pair, and I've used another. But it works. It would also probably be a good idea to run only a single device from each power/ground pair. That way you're limiting and distributing the electrical load.
Once again......follow and use this at your own risk!
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