Installation Manual

Table Of Contents
14221-1850-4000, Rev. A
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recommended at the rear, left, and right sides of the radio. The area directly at the front of the radio must
be completely clear of objects so the operator can easily access and view the radio’s Control Head.
The bracket is both left-to-right and front-to-rear symmetrical. It has eleven (11) holes for securing it to a
mounting surface. At least four (4) of these holes must be used to secure the bracket to the mounting surface.
Other types of hardware (not supplied) may be used, such as #10-32 stainless-steel self-locking hardware
(i.e., machine screws with washers and locking nuts), or self-drilling screws. Self-drilling screws such as
“TEK” screws do not require drilling of a pilot hole prior to installation. Do not use common self-threading
sheet metal screws because they will loosen over time with vehicle vibrations.
The following mounting procedure is recommended:
1. The mounting bracket has three (3) mounting holes:
Ø The upper row of mounting holes is preferred for a front mount radio installation with the bracket
located below the radio (e.g., for installation over a transmission hump).
Ø The middle row of mounting holes is preferred for a remote mount radio with the bracket located
below the radio (e.g., for installation over a transmission hump).
Ø The bottom row of mounting holes is preferred for installing the radio with bracket located above
the radio (e.g., for under-dash installation).
2. Loosely connect the rail plates (see Figure 8-5) or the T-sliding nuts (see Figure 8-6) to the mounting
bracket using the socket head M4 screws, M4 star washers, and M4 flat washers. Tighten the screws
approximately four (4) threads, ensuring they do not protrude beyond PEM nut on the rail plate).
Figure 8-5: Install Side Rails in Mounting Bracket