1. If this vehicle has a navigation unit separate from the radio, connect this interface
there. If this vehicle has no navigation unit (or NAV is built-in to the radio), connect
this interface at the screen.
2. Gain access behind the screen/navigation unit and disconnect all
connected harnesses before cutting any wires.
3. Examine the wires available from the provided RGB Video Harness.
These wires are used for separating the red, green, blue and SYNC signals
(like you would with a relay).
4. Find the RGBS wires connecting the NAV drive (or radio stack) to the screen. Make sure
you have the correct harness by disconnecting the plug while the radio is in the
NAVIGATION mode: the image should disappear immediately. The RGBS wires will
typically be surrounded by sheathing to block interference.
5. Cut the Red, Green, Blue and Sync SIGNAL wires in half, one at a time. The colors of
these wires are rarely red for red, green for green etc. The best way to do this:
a. Strip sheathing back and gain access to the wires (gain extra slack)
b. Make sure nothing is shorted
c. Turn the car on and put the radio in NAV mode (if available)
d. Cut each wire you suspect to be Red sig, Green sig, Blue sig and SYNC sig one at a
time, and with each cut you should lose the corresponding signal color on the
NAV screen.
e. Cut the SYNC wire. This will make the image stutter and/or scroll lines either
horizontally or vertically.
f. Do not cut the RGB ground in half. Connect the ground wires together from the
RGB Video harness and splice into the RGB ground. See diagram on next page.
6. Connect each wire from the RGB Video Harness to the NAV/Radio side and Screen side
of each signal (red, green, blue, SYNC). Connect the RGB ground wires together and
splice them to the RGB ground (sometimes the sheathing itself). See (universal) diagram
for visual aid.
7. Proceed to page 4 to complete wiring to the Power Connection Harness.