Tachometer install on Terios 2003

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Does anybody can provide information on how to install a tachometer on a Terios 2003 (K3-VE engine).
What I want to know is where to connect the tach's signal wire to the car. I suppose it could be connected to the REV terminal on the DLC (data link connector) but I´d appreciate if somebody can give more advise on this.