The VR Tuned Power Pedal is very easy to install.  All electronically controlled gas pedals simply unplug and the Power Pedal plugs in as a T to the circuit.  You then have the control box and the button selector.  The button lights up 3 different colors.  No light is stock controlled.  Green is for sport.  Red is for very sporty.  Here we have done the install on a Mini Cooper S which gives you the basic idea on the installation.

VIEW PDF INSTRUCTIONS HERE