Sti-r installation manual – Beltronics Sti r Plus User Manual
Page 2
 
G
12 Volt
Power Line
±
Interior of Vehicle
STi-R Installation Manual
A
B
D
B
A
F
Controller
1 Determine the best location for the Display
Controller in the vehicle’s interior. (Consult
customer if necessary.)
2 Install Controller using supplied double-
sided tape located on the back. Simply peal 
off the paper backing and press onto clean
surface.
3 Route cable and plug into jack marked
“Controller” on the Interface.
Note:
Make certain that the Controller can be 
easily accessed without interfering with 
normal driving.
Radar/Laser Receiver Cable
5 Pull grommet (located on the receiver 
cable itself) through the firewall to seal the 
hole. Use silicone sealant (not supplied) if
necessary.
Note:
1. Connection between the Receiver and the
receiver cable, must be located in a dry 
location under the hood.
2. Only drill hole in firewall after thoroughly
investigating location first, ensuring no 
other wires, hoses, etc. will be damaged.
3. Keep all cables away from moving parts,
and hot surfaces (radiator, hoses, etc.).
4. DO NOT splice cable.
1 Connect the receiver cable to the Receiver.
2 Route cable to firewall, and secure with
zip-ties (included).
3 Route receiver cable into the vehicle’s
interior. If there is not a suitable opening, 
drill a 13/32" or 7/16" hole.
4 Pull cable through firewall, and plug 
connector into the jack labeled “Front 
Receiver” on the Interface.
Radar/Laser Receiver
1 Determine the best location for the
Receiver. The best location is typically 
under the bumper, or inside the front grill of 
the vehicle. For the best performance, install 
the Receiver horizontally, with a clear “view” 
of the road.
2 Using the supplied mounting hardware,
mark the hole locations and drill pilot holes 
in the vehicle if necessary. It’s best to check 
and double-check clearances BEFORE 
drilling the holes.
3 Mount the Receiver using the supplied
hardware. (If right-angle mounting bracket 
is used, secure Receiver to the right-angle 
bracket first, then install bracket with 
Receiver to the vehicle.)
Note:
1. Do not drill holes in the Receiver itself.
2. Thoroughly investigate location before
drilling any holes.
3. Keep all cables away from moving parts,
and hot surfaces (radiator, hoses, etc.).
4. DO NOT splice cable.
E
F
E
Display
1 Determine the best location for the Display
in the vehicle’s interior. (Consult customer if 
necessary.)
2 Install Display using double-sided tape on
the back. Simply remove paper backing and 
press onto clean surface. You may also 
custom-install the display into the dashboard 
using the supplied template. Seek 
professional assistance for this.
3 Route cable and plug into jack marked
“Display” on Interface.
Note:
Make certain that the Display is clearly 
visible from the driver’s position.
D
Optional Concealed Display
1 Drill a 1/4" hole, and install the LED clip.
2 Snap LED into clip from behind.
3 Plug the modular connector into STi-R’s 
Interface marked “Concealed LED Display.”
Amplified Speaker
1 Determine the best location for the
Speaker in the vehicle’s interior. (Consult 
customer if necessary.)
Note:
The speaker is loud enough to be mounted
under the dash so it is not seen.
2 Mount the Speaker bracket using the
supplies hardware.
Interface
1 Install Interface under the dash using
supplied zip-ties. DO NOT MOUNT IN
ENGINE COMPARTMENT.
2 Connect black wire (–) to ground, and red-
striped wire (+) to a switched 12-volt supply.
(If STi-R is left in the “on” position, it will
automatically power on and off with the 
ignition). Use blue 3M connector (provided) 
to tap into existing circuit if needed.
3 The front Receiver, Display and Controller
all plug into the Interface. (Be sure to plug 
all cables into the correct labeled jacks.)
C
TEST
After all components are installed correctly:
1 Turn vehicle’s ignition to the “on” position.
2 Turn the STi-R on by pressing the “PWR”
button on the Controller.
3 The STi-R will cycle through a startup
sequence.
4 If any error messages come up, see page 23 
of the Owner’s Manual for details.
3 Plug the audio line (ear phone jack 
connector) into the Interface jack marked 
“Speaker”.
4 Connect the (+) to a switched power 
connection on the fuse panel, and connect 
the (–) to ground.
C
G
A