USA SPECS BT45-ACU User manual

Table of Contents
BT45-ACU Package Content................................................ 2
Introduction & Notice ......................................................... 2
Compatibility Information
Vehicle Compatibility & XM Tuner Location .................. 3
Bluetooth Device Compatibility...................................... 4
Radio & Device Compatibility for Music Info Display .... 4
Installation
DIP Switch Setting & Installation Quick Guide............... 5
Installation Steps & Diagrams ......................................... 6
Bluetooth Setup
Bluetooth Device Pairing Instructions............................ 9
Media Audio Streaming .................................................... 10
Music Playback Control..................................................... 10
Hands Free Phone Calls
Incoming Call .................................................................. 11
Outgoing Call ................................................................. 12
Transferring Call from HandsFree to Headset................. 13
AUX Input ........................................................................... 13
USB Charging Port ............................................................ 13
Troubleshooting ............................................................... 14
Q & A .................................................................................. 15

2
BT45-ACU Package Content
• 1 Owner’s Manual • 1 CAS-ACU Cable
• 1 BT45 Interface Module • 1 Microphone
Introduction
The BT45 seamlessly integrates your vehicle’s OEM sound system with
Bluetooth (HFP) devices so you can make hands free phone calls and
stream your music. You can wirelessly connect your A2DP Bluetooth
prole equipped smartphone or tablet to playback stored music or stream
from your favorite music apps such as Pandora or iHeart Radio. The
BT45 also includes a 3.5mm auxiliary audio input so you can play back
music stored in your non-Bluetooth devices.
The BT45’s plug & play technology takes advantage of the OEM radio’s
ability to accept an external CD changer or Satellite Radio by converting
it into Bluetooth phone/audio streaming/AUX input source. This design
innovation allows you to maintain functionality of any of the following
existing factory installed options: Bluetooth HandsFreeLink, LiveTrafc,
Navigation, CD changer, Satellite radio, RSE (rear seat entertainment
system), and AUX/USB input.
Notice
USA SPEC soley distributes its products through authorized dealers in
order to ensure its customers receive proper services and information
from the dealers. USA SPEC reserves the right to only offer technical
support or warranty services for products purchased through authorized
USA SPEC dealers. Please refer to our website www.usaspec.com for a
list of authorized dealers.
Installation/operation precautions:
· DO read the entire manual before starting the installation. We recom-
mend that the BT45 be installed by a qualied professional since all
i n s t a l l a t i o n s w i l l r e q u i r e t h e r e m o v a l o f s o m e p a r t s o f t h e v e h i c l e s u c h
as dashboard, backseat, etc.
· DO install the interface securely using Velcro or wire ties (not included)
and keep away from any moving parts such as the gas pedal.
· DO NOT open, disassemble, or modify the BT45 in any way. Such
attempts will void the warranty on the product.
· DO NOT expose the interface to extreme temperature, humidity, or
direct sunlight.
· DO NOT operate the Bluetooth device while driving. Always give full
attention to the road while driving.

3
Compatibility Information
Vehicle Compatibility
Chart 1: Vehicle Compatibility & XM Tuner
Location
Model
Year XM Tuner Location
RL (Nav) 05-09 Behind the left rear quarter
panel in the trunk
TL (Nav) 07-08 Behind the right rear quarter
panel in the trunk
MDX (Nav)* 07-09 Right rear underneath the
subwoofer
RDX (Nav)
07-09 Behind the glove box
* See p.11 for functionality exception
Use the BT45-HON3 on Canadian model vehicles without
LiveTrafc

4
Bluetooth Device Compatibility
BT45 is compatible with most Bluetooth-enabled devices including
iPhone, iPad, iPod Touch, Android smartphones & tablets,
Blackberry, and Nokia Windows smartphones. Device must have
Bluetooth prole A2DP (Advanced Audio Distribution Prole) and
AVRCP (Audio/Video Remote Control Prole) 1.4 or higher for
audio streaming and text display.
Note: Due to the difference in Bluetooth technology, some
Bluetooth enabled devices may be incompatible or may not
support all the features when used with a BT45.
Radio & Device Compatibility for Music Info
Display
The Display of artist, album, and song title information on the radio
is determined by the following 3 factors
1. Your radio has an XM button.
• Satellite radio does not need to be activated nor does the
tuner need to be present. As long as the radio has an XM
button, you can get music info display.
2. Your device’s operating system.
Music info display on your radio is available for:
· iPod, iPhone, and iPad with iOS 6.0 or higher
· Android devices with 4.0 (Ice Cream Sandwich) or higher
3. Your device’s Bluetooth AVRCP prole must be 1.4 or higher.
Refer to your device’s product manual to conrm its prole
version.

5
Installation
DIP Switch Setting & Installation Quick Guide
ID Your Radio:
Does it have a navigation system?
YES
Set DIP Switch
1 & 3 ON
2 & 4 OFF
See Installation
Instruction on
Page 6.
NO
Use BT45-HON3

6
Installation Steps & Diagrams
Installation
Instruction A
Install the BT45 interface
module in an easily
accessible location.
Install the microphone
See Diagram C (p. 8) for
recommended locations
Connect cable to XM tuner
See Diagram A (p. 7)
Locate XM tuner
See Chart 1 (p. 3)
Pair your Bluetooth
device (phone)
See p. 9 for instructions
Learn about audio streaming,
hands-free phone calls, and
AUX input on p. 10-12.
Make sure you have
completed all of the above
steps and made a couple of
test calls before putting
your car back together.

7
18 pin male
XM TUNER
BT-ACU
TO RADIO
14-pin male
14-pin female
BT45 Interface Module
Unplug Factory XM Cable
Diagram A: Cable Connections

8
Diagram C: Recommended Microphone
Locations

9
Bluetooth Setup
Bluetooth Device Pairing Instructions
1. Enable Bluetooth function on your device (phone).
2. Turn the vehicle’s ignition ON.
3. Scan/search for available device from your phone.
- It may take up to 60 seconds for your phone to
locate the BT45-HON.
4. Select the XM1 source from
your radio.
5. Select BT45-HON from the list
of available devices your
phone has detected.
6. Allow the pairing process to
take place.
7. Once the paring is complete
you will hear the
“CONNECTED” voice prompt
from your vehicle’s audio
system and you will see your
device’s name displayed on
the radio screen i.e. USA
SPEC Test Phone.
Note: Some devices may ask for a Pin # during the pairing process.
Pairing Pin # = 1234

10
Media Audio Streaming
Device requires Bluetooth A2DP profile
• If you have music stored in your device, it will begin to play
right after the “CONNECTED” voice prompt. If playback doesn’t
start automatically, press TUNE UP or TRACK/SEEK UP to initiate
playbck.
• You can also proceed to access your favorite music/media app
such as Pandora or Podcast app directly from your device.
Device with AVRCP 1.4 & higher
Radio will display music information
such as artist, album, and song title.
Device with older AVRCP profile
Radio will display [NO TEXT] and
the BT45 will assign track numbers
to the currently playing music.
When you pause the music,
radio will display [PAUSED].
Playback control from your radio (Track Up/Down)
Device requires Bluetooth AVRCP profile
· From radio:
Press TUNE UP/DOWN
button(s)/knob.
·From steering wheel:
Press CH +/- button. In some
vehicles you may need to press &
hold the CH +/- button.
· After you pause the music, and the
radio display says [PAUSED], you
can use the TUNE UP button/knob
to start playback.
Music Playback Control

11
Hands Free Phone Calls
Incoming Call
1. The BT45 will mute the audio source (AM/FM, CD, XM, or AUX) you
are listening to.
2. You’ll hear “You have a call from (Caller’s phone #)” or “Private” if
Caller ID is not available. If the voice prompt*is disabled, you’ll only
hear the phone ringtone.
Radio will display incoming call’s
number or [PRIVATE]
To Answer the Call**
From radio: Press TUNE UP
button/knob
From steering wheel:
Press CH+ button. In some
vehicles you may need to press
& hold the CH+ button.
Note: If a phone call comes in
while you’re in XM2, you must go
to XM1 first then press the
TUNE UP or CH+ button to
answer the call.
Once the call is answered, radio
will display [ACTIVE].
*How to Enable/Disable Voice Prompt
• Turn engine ON
• Start audio streaming
• While streaming turn Bluetooth off from your phone/device’s
setting.
• Wait 5-10 seconds, turn TUNE button/knob to the right to ENABLE
and turn to the left to DISABLE.
To Reject or End the call
Press TUNE DOWN radio button or
or CH- steering wheel button
MDX (Nav) 07-09 Note
BT45-ACU will not auto-
mute the radio upon an
incoming call. You must
manually switch to XM1
first in order to answer the
call using either radio or
steering wheel button.

12
Outgoing Call
Initiate the call from
your phone
BT45 will mute the audio
source you’re listening to and
automatically switch over to
Bluetooth mode.
To End the Call
From radio:
Press TUNE DOWN
button/knob
From Steering Wheel:
Press CH- button. In some
vehicles you may need to hold
& press the CH- button.

13
Transferring an active call from Hands-free to
Handset
From radio: Press TUNE UP
button
From Steering wheel: Press
CH+ button
Press the same button again
to transfer the call back to the
Bluetooth Hands-Free mode.
Aux 3.5 mm Audio Input
1. You'll need a 3.5mm to headphone jack cable (not included
in this package)
2. Make sure DIP switch #1 is set to ON
Go to XM1 then press Preset 6
to access the audio device
connected to the AUX port.
Note: Remember to manually adjust the volume of your audio
device to MAX after it's been connected.
Maximum charging ouput: 2.1 amps at 5 volt
(charging cable noto provided)
AUX Input
USB Charging Port

14
• I’m unable to pair my smartphone/device.
If you have an Android device, make sure the “Only visible to
 paireddevices”oponisUNCHECKED.Somemesitcantake
up to 30 seconds for the BT45 to be detected by your
 smartphone/device.
• My radio is not displaying any music info such as song tles.
 ConrmthatyourdeviceisequippedwithBluetoothprole
 AVRCP1.4orhigher,ithasiOS6.0orhigher,orAndroid4.0or
 higher.
 Musicstreamingapps’infodisplaycapabiliesvarythussome
 mightnotdisplayproperlyonyourradio.
• The BT45’s USB port will not charge my device.
 PleaseusedataSYNCandCHARGE(USB2.0capability)cables.
 NotallUSBcablesonthemarketsupportcharging.
• I connected all the cables properly in my RL but the BT45-ACU is
sll not funconing.
 Makesureyou’veconnectedtotheXMtuner(seep.3for
 locaon)andnottheCDROMunderneaththereardeck.
• I have a device connected through BT45’s AUX input and the
volume is very low.
 TurnthevolumeontheactualdevicetoMAXthenusethe
 radio’svolumecontroltoadjustthelevel.
Troubleshooting

15
Q&A
• I already have a USA SPEC PA15-ACUxl installed in my Acura, can I
have both a BT45-ACU and a P15-ACUxl connected in my vehicle?
 No,unfortunatelyyoucanonlyhaveoneortheother.
• Do I lose my XM funcons since XM1 is now for Bluetooth?
 No,you’reonlylosingthepresetsunderXM1.Youcansll 
 accessyourSatelliteradiothroughXM2.
• My vehicle is equipped with factory HandsFree Bluetooth, is the
BT45-ACU sll compable?
 Yes,forasmootheroperaonalexperiencewerecommendthat
you un-pair the factory Bluetooth from your smartphone/device
 andusetheBT45-ACUonly.However,youdohavetheoponto
set your Android device to use BT45 for media audio only and
 usethefactoryBluetoothforHandsfreephonecalls.

LIMITED WARRANTY
Thank you for choosing a USA SPEC product. USA SPEC, Inc., is committed to provid-
ing high quality defect-free products. All USA SPEC products are tested before leaving
the factory and warranted against defects in materials and workmanship for a period
of one year to the original owner. The one-year warranty period begins at the date of
purchase from an authorized dealer.
PRODUCTS COVERED:
Products and related accessories supplied by USA SPEC, Inc. with the brand name
of USA SPEC are covered by this warranty. Only products purchased in the USA are
covered.
WARRANTY DOES NOT COVER:
1. Damage due to improper installation or operation, negligence, abuse, or not following
instructions, warnings or acceptable industry procedures.
2. Damage caused during the shipment or transportation of the product. All claims of
this nature must be presented to the carrier.
3. Damage caused by acts of God, war, or civil disturbance, including without limitation,
ood, re, storms, earthquake or other acts of nature.
4. Any expenses or cost to remove or reinstall products.
5. Any product without the original serial number and factory seal, or has been serviced
or modied without the authorization of USA SPEC.
6. Any product not distributed by an authorized USA SPEC dealer.
TO OBTAIN WARRANTY SERVICE:
Contact the Customer Service center for assistance at (626) 336 - 3836. A detailed
description of the problem(s) is required for service. Proof of purchase is also required
when sending a product for warranty service. If the problem cannot be resolved and
the product must be returned for service, you will receive an authorization form from
the service center. The product must be delivered pre-paid to the service center. USA
SPEC will, at our option, repair the product or replace it with a new or reconditioned
product, and if it was shipped to the service center, the return shipping will be pre-paid
free of charge provided the repairs are covered by the warranty. The product must be
packed securely for shipment to the service center in order to preserve the warranty and
prevent damage.
NO IMPLIED WARRANTY, INCLUDING MERCHANTABILITY AND FITNESS FOR
USE APPLIES TO THIS PRODUCT AFTER THE ONE YEAR PERIOD AS DEFINED
ABOVE, AND NO OTHER EXPRESSED WARRANTY OR GUARANTEE, EXCEPT AS
MENTIONED ABOVE, GIVEN BY ANY PERSON, FIRM, OR CORPORATION WITH
RESPECT TO THIS PRODUCT SHALL BIND THE WARRANTOR. NEITHER THE
WARRANTOR NOR ANY OTHER PERSON, FIRM, OR CORPORATION IS RESPON-
SIBLE FOR LOSSES OR INCONVENIENCES, OR FOR ANY CONSEQUENTIAL DAM-
AGES CAUSED BY THE PRODUCT. SOME STATES/PROVINCES DO NOT ALLOW
LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, AND SOME DO
NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUEN-
TIAL DAMAGES.
This warranty gives you specic legal rights, and you may also have other rights, which
vary, from state to state, and province to province. Some of the limitations or exclusions
may not apply to you. THE ABOVE WARRANTY TERMS AND CONDITIONS ARE
VALID ONLY IN THE U.S.A.