It is simple, although the instructions should explain it.
Direct from the instructions:
This will automatically bypass Alpine’s video procedure. After programming (detailed
programming on page 3), connect the GREEN wire to the Alpine’s remote wire, the
BLUE wire to the Alpine’s foot brake input wire, the WHITE wire to the Alpine’s parking
brake input wire. In this conﬁguration, relays are not needed. Do not connect any other
sources to the WHITE or BLUE wires of the TR-7. Connect the RED wire to vehicle’s
accessory 12v. Note: This feature is factory set. Keep switch to off position and
wire according to above. No programming is neccessary unless changed.
WARNING! It is dangerous (and illegal in most states) for the driver to watch the TV/Video
monitor while driving the vehicle. The driver may be distracted from looking ahead and an
accident could occur. Install the TR-7 only in RV and Marine applications where there is no
parking/hand brake to interface to. Do not install the TR-7 where the driver may be able to
view the monitor when driving