Owner's Manual

GMR-2
1
As with all high quality audio products, we recommend professional installation by an
authorized MB Quart dealer. Your dealers knowledge and experience can ensure a
problem free and cosmetically integrated installation.
If you choose to install the device yourself, please read the entire manual very carefully.
Installation & Mounting Location Tips
The fi rst step is thorough planning before the installation begins.
The GMR-2 chassis requires a 3-3/16” or 81mm mounting hole diameter and 2-7/8” or
73mm total mounting depth.
It will also require you to be able to access the area behind the chosen mounting loca-
tion in order to connect the wires and fasten the GMR-2 mounting bracket with screws.
Precautions:
1. Be sure there is adequate clearance behind the mounting location to ensure there
are no wires, fuel lines, moving parts or obstacles that will prevent the unit from fi tting
properly or from being damaged during drilling of the opening.
2. Be sure the chosen mounting location is a fl at surface with no curves to ensure a
fl ush water tight fi t.
3. To help prevent the possibility of radio interference and damaging heat, choose a
location as far away from the engine compartment as possible.
4. Disconnect the battery to ensure there will be no shorted wires during the installation
procedure.
Installation Procedure:
1. Drill a 3-3/16” or 81mm mounting hole.
2. At this point, you may choose to connect the wires and cables prior to placing the
GMR-2 into the mounting hole or mount the GMR-2 fi rst, and then connect the wires
behind the mounting location.
3. Connect the wires from the GMR-2 to all required operational wires per the wiring
diagram on page 2. We strongly recommend soldering all wires and insulate with shrink
tubing or a high quality electrical tape.
4. After placing the GMR-2 into the mounting hole, securely fasten with the “U” bracket
and mounting screws provided.