I just had an Idea...... You could have your chip turn the "Shift light" On the guages on at the Predeturmined 5000-5500 RPM's And hook a signal wire up to the light and then shoot it to a relay, switching on the DSI motor...... What would be wrong with that ? Plus it's cheaper and you don't have a box taking up space in the glove box.
What are your guys thoughts ?
So what your saying is that a PULSED (1 time 5v after pre deturmined RPM) Is sent to the DSI box to turn it on, And when it reaches Below the Pre deturmined RPM it again sends another 5v Pulse (1 time) ??
You can use resistors to accomplish the 5v but I don't know about the Momentary pulse.......