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USA Spec BT45-ACU

Add Bluetooth® capability to 2005-09 Acura with Live Traffic

Item # 581BT45ACU

You love your Acura and its Live Traffic feature, but you really want the convenience of Bluetooth.

Find what Fits your car

You love your Acura and its Live Traffic feature, but you really want the convenience of Bluetooth.

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Contact our Virginia-based experts.

Item # 581BT45ACU

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$219.99 -$40.00 Price break

$179.99

About the USA Spec BT45-ACU

Add Bluetooth to your Acura

You love your Acura and its Live Traffic feature, but you really want the convenience of Bluetooth. USA Spec designed the BT45-ACU adapter for 2005-2009 Acuras with TrafficLink, and the package includes everything you need to install it in your vehicle. It allows your Acura's radio to communicate with any Bluetooth-enabled devices with A2DP audio streaming. You can stream audio from your favorite phone apps (including games), and you'll be able to handle phone calls using the radio's controls or your steering wheel buttons.

Add Bluetooth to your Acura

You love your Acura and its Live Traffic feature, but you really want the convenience of Bluetooth. USA Spec designed the BT45-ACU adapter for 2005-2009 Acuras with TrafficLink, and the package includes everything you need to install it in your vehicle. It allows your Acura's radio to communicate with any Bluetooth-enabled devices with A2DP audio streaming. You can stream audio from your favorite phone apps (including games), and you'll be able to handle phone calls using the radio's controls or your steering wheel buttons.

The adapter also includes a 2.1-amp USB charging port as well as an auxiliary input for other non-Bluetooth audio devices. It supports text display so you'll see song and artist info on your factory radio.

Don't miss a call

With the latest in Bluetooth technology, the BT45 gives you great sound and works seamlessly with the vehicle's existing audio sources. You can carry on a noise-free conversation in almost any environment, and USA Spec's technology gives you the best possible sound quality. The built-in auto-mute function makes sure you never miss a call.

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Highlights:

  • lets you talk hands-free and stream music through the factory radio in select Acura vehicles
  • includes wiring harness and microphone
  • auto-mute keeps you from missing a call
  • USB charging port
  • auxiliary input for non-Bluetooth devices
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # BT45-ACU

What's in the box:

  • Add-on Bluetooth interface module
  • Microphone (w/ attached 16' cable terminated by a 3.5mm connector)
  • Vehicle/Interface harness (CAS-ACU)
  • Owner's Manual

Customer reviews

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USA Spec BT45-ACU reviews

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More details on the USA Spec BT45-ACU

Stacey B.
The USA Spec BT45-ACU replaces these items:

Product Research

Features

Add-On Bluetooth Interface Module (for Acura): The USA Spec BT45-ACU is a Bluetooth 2.1 + EDR (Enhanced Data Rate) Phone & Music Interface for select Acura vehicles. The BT45-ACU lets you add Bluetooth hands-free communication and wireless music streaming to your compatible vehicle's factory radio. It also features an auxiliary input and USB charging port. The USA Spec BT45-ACU includes a hide-away module, external microphone, and wiring harness.

Vehicle Compatibility: The USA Spec BT45-ACU is compatible with select 2005-2009 Acura vehicles with factory navigation & Live Traffic (as of 12/16/2014).

Make Model Year
Acura RL 2005-2009
TL 2007-2008
*MDX 2007-2009
RDX 2007-2009
Please consult Crutchfield's Outfit My Car for your vehicle's specific compatibility.
Notes: You are able to keep your vehicle's factory installed Navigation, Satellite Radio, CD-changer, RSE (rear entertainment system), USB port, and/or Aux input.

Bluetooth Pairing: The USA Spec BT45-ACU can only be paired and connected to one Bluetooth device at a time. Its compatible with most Bluetooth-enabled mobile devices such as Apple iPod touch/iPhone/iPad, Android smartphone/tablet, Blackberry, Windows phone, and more.

Note: Due to the differences in Bluetooth technology, some Bluetooth enabled devices may be incompatible, function improperly, or may not support all features when used with the USA Spec BT45-ACU.

Bluetooth Hands-Free Communication (HFP): The USA Spec BT45-ACU supports Bluetooth Profile HFP for hands-free communication from your Bluetooth enabled mobile phone, so you can take (answer/end) phone calls through your vehicle's factory radio.

  • Answering a Phone Call: When there is an incoming call, your factory stereo's music will be muted and an audible ring-tone will be heard through your vehicle speakers. You can even have the BT45-ACU announce the caller's phone number through your sound system; and for most text-capable radios if you miss the announcement, you can view the caller's phone number on your factory radio's display. To answer the call, simply press the Tune Up, CH+, or Track/Seek Up button on your factory radio or steering wheel control. To end or reject a call, press the Tune Down, CH-, or Track/Seek Down button on your factory radio or steering wheel control.
  • Dialing a Phone Number: In order to dial a phone number, you will still need to use your Bluetooth-enabled mobile phone; you cannot dial a number from the factory radio. Once you've dialed a number from your mobile phone, then the call will be automatically transferred to the BT45-ACU and your factory stereo system.
  • External Microphone: The USA Spec BT45-ACU includes an external microphone to carry on your side of the conversation, while the caller's voice will be heard through your vehicle's speakers. The external microphone provides better performance in noisy environments than the integrated microphone found in many factory or aftermarket head units. The microphone is fitted with a 16' cable terminated by a 3.5mm connector that connects to the BT45-ACU module; it measures 0.9375" (w) x 0.6875" (h) x 1.625" (d). The microphone has a self-adhesive backing to mount it to your vehicle's driver-side pillar, head-liner trim, or dash (do not mount it to the windshield.
     
Note: *If you have a 2007-2009 Acura MDX with Navigation, the BT45-ACU will not auto-mute the radio upon an incoming call. You must manually switch to the XM1 source first in order to answer the call using either the factory radio or steering wheel controls.

Bluetooth Audio Streaming (A2DP/AVRCP): The BT45-ACU supports Bluetooth Profiles A2DP and AVRCP for wireless audio streaming from a Bluetooth-enabled device that can also be controlled from the buttons on your vehicle's factory radio or steering wheel; in some cases you can also view song/artist information on your factory radio's display.

  • Wireless Music Streaming: You can stream music stored on your Bluetooth enabled device or stream music apps (such as Pandora, SiriusXM Radio, iHeartRadio, etc.) that are playing on your Bluetooth device to your vehicle's sound system (all speakers will play).
  • Music Control: You can control Play/Pause and Previous/Next Track functions from your vehicle's factory radio or steering wheel controls (other control functions will have to be done from your Bluetooth enabled device). You can control the volume of the music being streamed via your factory radio and steering wheel controls, or the Bluetooth device.
  • Song/Artist Information: In many cases, you can view artist, album, and song title information on your factory radio's display. In order to view song/artist information on your factory radio's display, your factory radio and your Bluetooth-enabled device must meet the following requirements:
    • Your factory radio must have an XM button; a satellite radio does not need to be activated, nor does the satellite radio tuner need to be present.
    • If you are using a Bluetooth-enabled Apple iPod touch/iPhone/iPad, then it must be running iOS 6 or higher. If you are using a Bluetooth-enabled Android smartphone/tablet, then it must be running Ice Cream Sandwich (4.0) or higher operating system.
    • Your device's Bluetooth AVRCP profiles must be 1.4 or higher.

Auxiliary Input: In addition to wireless Bluetooth connectivity, the USA Spec BT45-ACU is fitted with an auxiliary audio input (3.5mm) for connection of practically any portable audio device with a headphone jack output or analog audio output.

USB Charging Port: The USA Spec BT45-ACU features a USB (type-A) port to charge your smartphone or other portable audio device in your vehicle. Because the BT45-ACU is a hide-away device, you'll want to purchase a USB extension cable (sold separately) to make the unit's USB charging port accessible. The USB charging port is rated at 5V/2.1A.

Note: This USB port is for charging only; it does not support music streaming.

Dip Switches: There are 4 dip switches that will need to be configured to match the type of factory radio you have; Navigation or Non-Navigation.

Installation: The USA Spec BT45-ACU installs either behind the glovebox, in the trunk or underneath the factory subwoofer (based on type of vehicle and where the XM Satellite Radio tuner is located).

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
assistance from adviser on finding device. [ Michael  Mar 03, 2019 ]
A
I wanted to have Bluetooth connectivity in my vehicle due to the factory unit not functioning. [ Eric  Feb 23, 2019 ]
A
I trust Products from Crutchfield. It should work seamlessly with my Acura MDX. [ caleb young  Sep 21, 2018 ]
A
I need my apple music [ Karen  Aug 28, 2018 ]
A
I heard this item will solve my solution for my 05 RL with no bluetooth capabilities. My car is still in good shape and that would help me keep it longer as it has the latest technologies found in my truck. [ William  Aug 11, 2018 ]
A
Best option available to add BT for music streaming to a 2006 Acura RL [ KURT  May 16, 2018 ]
A
To listen to music from my phone [ D  Mar 27, 2018 ]
A
This item had awesome reviews! [ Andrew  Oct 19, 2017 ]
A
a youtube video and because David (online chat) was helpful. Found it cheaper at other places but your customer/support service is worth the extra $. Thank you, Jerry [ Jerome  May 14, 2017 ]
A
because i need bluetooth in my car. [ Eric  Jan 21, 2017 ]
A
I used the BT45-HON on my previous car and it worked well. [ S  Jan 15, 2017 ]
A
Can't replace the radio in my 05 Acura Rl but wanted to be able to stream music via Bluetooth. [ Gregory  Jul 14, 2016 ]
A
First Crutchfield recommends it and stands by it. Second, almost universal positive reviews. Third, I can install it myself. [ RICHARD C  May 19, 2016 ]
A
I needed a way to stream my music, being that my vehicle has no auxiliary input this was the best way to go. This was a no brainer for me. [ Adrian  Apr 18, 2016 ]
A
To have audio streaming via bluetooth for my 2007 Acura RL. [ Michael  Mar 07, 2016 ]
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2 questions already asked

Q
Does the BT45-ACU Bluetooth Interface work with 2008 Acura TL Types S?
[ einciart  Apr 15, 2017 ]
1 answer
A
You will want to contact an Advisor by phone (1-800-324-9695) or online chat to discuss compatibility with your factory system. They will be able to pull up your vehicle and see if this will integrate. If it does not, then they will also be able to discuss other options with you.
[ Kenny  Apr 17, 2017 ]  Staff
Q
I have a 2008 Acura MDX with entertainment package. The car is equipped with bluetooth but it is limited to phone calls. Will this device allow me to stream music from my phone/tab to the car audio system?
[ Abhishek  Feb 01, 2015 ]
1 answer
A
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle.
[ Krissy  Feb 01, 2015 ]  Staff

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