It is important to read this manual thoroughly before starting your installation
and always plan accordingly. Before installing any Wāvtech product, disconnect
the negative (ground) wire from the vehicle’s battery to avoid damage to the
vehicle or yourself. Following all guidelines will help provide years of enjoyment
with your Wāvtech linkD audio interface.
Ground Connection (GND): The GND terminal must be connected to a metal
part of the vehicle that is welded to the vehicle body with ground plane back to
the main battery ground attachment point (a.k.a. chassis ground). This wire
should be a minimum of 18AWG and as short as possible to minimize potential
for noise to enter the system. The chassis ground connection point should have
all of the paint removed and be scuffed to the bare metal. The ground wire
should be terminated by a ground specific interlocking terminal such as the
included EARL terminal or a ring terminal securely bolted to the vehicle with
star or lock washer and nut to prevent from coming loose. Avoid using factory
ground points to reduce the chance of induced noise from other components.
Power Connection (+12V): The constant power connection should be made at
the vehicle battery when possible. For direct battery connection, a 1-amp fuse
must be installed in-line with the power wire within 18”of the battery and
securely connected to the positive battery terminal bolt with a ring terminal. If
connecting to another available co12V power source, a 1-amp in-line
fuse must be added at the connection point. The power wire should be a
minimum of 18AWG. Do not install the fuse until all other system connections
have been made.
Speaker Level Input (SPK): Connect the speaker wires from the source unit to
corresponding terminals on the interface. Use the SPK input if your source unit
is not equipped with RCA outputs. Always ensure the correct polarity of each
channel when making these connections, as failure to do so can severely effect
sound performance.
Remote Input (REM IN): If the source unit has a remote output wire (provides
+12V only when turned on), connect it to the REM IN terminal. If a remote lead
is unavailable, the linkD also has an auto turn-on circuit that simultaneously
detects audio signal from SPK and AUX inputs as well as DC-offset from SPK
inputs. While auto turn-on will work well in most applications, a +12V trigger
may be required for satisfactory results under certain vehicle or system
conditions. Additionally, DC-offset and/or audio signal detect functions can be
independently defeated via internal jumpers (labeled DC and AUD) if necessary.
5
Installation & System Wiring
