Owner's Manual

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

constant +12V 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 a switched +12V or remote trigger wire is

available, it is recommended to connect it to the REM IN terminal. If

unavailable, the linkDQ also has an auto turn-on circuit that

simultaneously detects audio signal from SPK and RCA 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

the external jumpers if necessary.

Remote Output (REM OUT): Use the remote output to provide a +12V

trigger to turn on ampliﬁers or other aftermarket devices. This +12V

output is generated internally by the interface when turned on either by

REM IN or automatic sensing, and will provide over 500mA of continuous

current for external devices.

System Examples

Example-1: Speaker Level Input from OEM Radio

Note: When using the factory radio to drive speakers directly and provide the

linkDQ with signal, the speakers will likely distort before reaching the radio’s

maximum volume setting. Adjust gain accordingly for optimum volume range.

RCA OUT

+12V

GND

REM OUT

SPK IN

linkRC

(optional)