good idea... he needs that dvd/nav head unit with the gauges on it too!!!
here it is
http://www.pioneerelectronics.com/pna/v3/pg/product/details/0,,2076_310069876_192089326,00.html
here's what it does
Displayed Information:
• Vehicle Performance: Speed, R.P.M., Lateral G Force, Acceleration, Torque (estimate), Horse Power (estimate), Slope Angle, Angular Velocity, Battery Voltage
• Current Location: Longitude & Latitude, Altitude, Direction, Direction to Destination, Distance to Destination
• Other Information: Date, Time, ODO Meter, Trip Meter, Level Meter, My Record
GOTTA HAVE IT!!!
the next step to this is to be able to have your head unit control a VEC... remove the necessity of having a laptop... that'd be sweet... get your truck to backfire on demand LOLOL