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Milennia MIL-BTREC

Bluetooth® adapter

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  • Milennia MIL-BTREC

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Our take on the Milennia MIL-BTREC

by Jon Paulette

Problem: You love listening to music, but you hate dragging that bulky album full of old, scratched-up CD's from vehicle to vehicle -- and you don't want to replace multiple receivers.

Solution: The MIL-BTREC Bluetooth adapter from Milennia. 

This compact accessory plugs into the rear RCA auxiliary inputs of any compatible radio and gives you the ability to enjoy Bluetooth® audio streaming. Supply power and ground to the MIL-BTREC, pair it up with your iPhone®, Android smartphone or other Bluetooth®-enabled music player, and get set to stream music. It's an instant upgrade, without the trouble and expense of buying a new receiver!

The MIL-BTREC Bluetooth adapter is a great solution for your boat, your "weekend" car or truck, or a variety of other 12-volt applications. With the right adapters, you can even connect it to a home stereo with an RCA or mini-jack AUX input.  Warranty: 1 year.

Note: If you want to connect this to the front mini-jack input on your car stereo, you'll need this stereo mini-to-RCA cable, and two female-to-female RCA barrel adapters.

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Product Research
What's in the box?

Download owner's manual

  • RCA-to-Bluetooth adapter
  • Instructions on packaging

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features

RCA-to-Bluetooth Adapter: The RCA-to-Bluetooth adapter allows your stereo receiver (equipped with a rear stereo RCA auxiliary input) to receive a Bluetooth audio signal. Now you can wirelessly stream music from your Bluetooth-enabled smartphone or audio player to your stereo receiver through its Aux input (the receiver's source must be set to Aux). You will still continue to control your music from your smartphone or other Bluetooth-enabled device. The adapter does not stream song/artist information to your head unit, nor does it offer hands-free phone communication.

Note: Once installed, you will need to pair the RCA-to-Bluetooth adapter with your Bluetooth-enabled audio device (from the device).

Connections: The RCA-to-Bluetooth adapter is equipped with two male RCA connectors which plug into the stereo RCA auxiliary input of your stereo receiver. The adapter also requires accessory power and ground.

Note: If your receiver has a 3.5mm AUX input, we suggest using a minijack-to-RCA cable (043183190, sold separately), in conjunction with two female-to-female RCA barrel adapters (04358075, sold separately).
 
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Milennia MIL-BTREC Reviews

Average Customer Review:

34 people say:

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5 out of 5

Milennia MIL-BTREC

Written By JohnB, Key West on Wednesday, August 27, 2014
Crutchfield Customer Review (What's this?)
 
Works flawlessly. I installed this in less than 1/2 hour. Somewhat confusing that the RCA jacks are red and black, and the wire should be a little longer, but I am very happy with the product.
Pros:
Price, ease of installation
Cons:
Wires a little short
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5 out of 5

Works great!

Written By Will, CA on Monday, August 11, 2014
Crutchfield Customer Review (What's this?)
 
Works great, it does what it says, quick cheap way to upgrade my old stereo system without having to buy a new one
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5 out of 5

Perfect

Written By R. Lacy, Garyville, LA on Sunday, July 27, 2014
Crutchfield Customer Review (What's this?)
 
Works just as advertised. Simply to install and put to use in no time,
Pros:
Very easy to install and connect to bluetooth.
Cons:
No cons thus far.I will just have to see if it lasts the test of time.
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4 out of 5

Great product

Written By Matt, Louisiana on Friday, July 18, 2014
Crutchfield Customer Review (What's this?)
 
Easy to use and it works great. I'm using it with a portable stereo.
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3 out of 5

Milennia MIL-BTREC Is Decent Solution

Written By Sean, Austin, TX on Thursday, July 17, 2014
Crutchfield Customer Review (What's this?)
 
Connecting this device is a snap. Configuring it to work with a Bluetooth device is also very easy to do. NOTE: The password of "0000" is used, which is written on a sticker that's on the unit itself - some people apparently missed this.

I use this unit on my boat where the receiver it connects to is in the lower deck. I like to keep my smart phone at the helm so I can operate it while listening. The distance from the unit to the helm is approximately 5' yet you do hear gaps that shouldn't occur. If I move the phone a couple of feet closer to the main unit, this problem ceases -- it's obviously a distance issue. Most Bluetooth technology gives you a 25-30' range and this seems to have about a 3-4' one! Some could argue that it's because I have it tucked up behind the main unit within the cabinet, but I assumed that's the whole idea (and it's surrounded by fiberglass so that shouldn't be something interfering with the signal).
Pros:
Easy to connect & configure w/Bluetooth device
Cons:
Range sucks!
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3 out of 5

Milennia MIL-BTREC

Written By Andy, Saginaw, MI on Tuesday, July 15, 2014
Crutchfield Customer Review (What's this?)
 
Split review only becusae i am sure it would have worked but my Marine deck was not compatible with it
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5 out of 5

Works Great

Written By Anonymous, Columbia, MO on Monday, July 07, 2014
Crutchfield Customer Review (What's this?)
 
Product works great and is very easy to install
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5 out of 5

Excellent!

Written By Doug, Anaheim, CA on Wednesday, July 02, 2014
Crutchfield Customer Review (What's this?)
 
Easy install, easy set up, works great!
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5 out of 5

Milennia MIL-BTREC

Written By Paul, Holden la on Wednesday, June 11, 2014
Crutchfield Customer Review (What's this?)
 
Great product
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4 out of 5

Second time is the charm!

Written By Grunt, Centennial, CO on Monday, May 26, 2014
Crutchfield Customer Review (What's this?)
 
First one I got was faulty, loud high pitch sound and when lightly touching the heat shrink around the device, it stopped working. Second one I got sent right out worked good. There is still a high pitch sound but very faint...
Pros:
Great customer service when I called with the first faulty unit. Works every time when it is powered (by the ignition in the car) and when the key is turned off the music on my phone stopped. Easy to install and hide anywhere!
Cons:
There is a chance that the first one may not work.
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5 out of 5

Works like a champ

Written By Anonymous, spokane wa on Sunday, May 18, 2014
Crutchfield Customer Review (What's this?)
 
Quite relieved to be able to stream to music from my galaxy s4 to my boat radio without having to replace the radio and the two hardwired remotes. Excellent product
Pros:
No more wires
Cons:
None
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5 out of 5

Milennia MIL-BTREC Bluetooth® adapter

Written By Roland, Palmdale, CA on Tuesday, May 13, 2014
Crutchfield Customer Review (What's this?)
 
First one smoked. Return and replacement went smoothly. Works great with my nine-year-old car stereo. Purchased a second one for my eight-year-old spa stereo system. Worked great on that system too.
Pros:
Easy to hook up, costs for what it does is a good value.
Cons:
None
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5 out of 5

Great so far!

Written By Erik, Fargo, ND on Wednesday, May 07, 2014
Crutchfield Customer Review (What's this?)
 
I installed this on my motorcycle to keep wires from hanging everywhere. The device connects to my Android phone very fast with good sound quality. Perfect solution to my problem.
Pros:
Very fast pairing and connection.
Cons:
None
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5 out of 5

Milennia MIL-BTREC

Written By Chris, Elizabethtown, NC on Friday, April 25, 2014
Crutchfield Customer Review (What's this?)
 
Saw this Product on Crutchfield when looking for a replacement Stereo Receiver W/ Bluetooth for my Boat and decided to give it a try. Went to Parts Store and bought a 12volt Male plug to power the unit and hooked it up to RCA connections in glove box and it works Great!! I plan on ordering a couple more for my other Radio's!
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2 out of 5

Bluetooth Receiver

Written By Paul, Corpus Christi, TX on Saturday, April 19, 2014
Crutchfield Customer Review (What's this?)
 
The first one i got fried as in smoking when i hooked it up. I was sent a replacement no questions asked. New one works, but I noticed only the music does bluetooth from my phone. Phone calls did not. Was disappointed because of this.
Pros:
No wires to mess with
Cons:
Does not put your phone calls on the speakers of your stereo
2 out of 5 people found this helpful
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5 out of 5

Bluetooth

Written By Mark, Phoenix Az on Friday, April 11, 2014
Crutchfield Customer Review (What's this?)
 
Simple to install. Works perfectly with I phone and android.
Pros:
Works as advertised. Simple to install.
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5 out of 5

Milennia MIL-BTREC

Written By Anonymous, 15126 on Thursday, April 10, 2014
Crutchfield Customer Review (What's this?)
 
Works great
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5 out of 5

Awesome!

Written By Dolph, Farmington, MO 63640 on Thursday, March 27, 2014
Crutchfield Customer Review (What's this?)
 
I bought this to install in a cooler boom box to take on float trips. At first I was concerned that being inside of the cooler it would have a hard time receiving a signal. Not only does it receive signal with the lid closed, it does it aproximatly 30 feet away! Which is perfect considering it will be in its own raft floating behind me. I have a 120qt cooler, 1000 watt amp, 4 6 1/2 inch mids and a 10 inch sub. I also have a stearo to RCA adapter installed to run my iPod directly to the amp using an auxiliary cable. The Bluetooth unit actually produces a better sound then using the hard wire.
Pros:
Easy installation, better sound quality than an auxiliary cable, plenty of range
Cons:
None
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5 out of 5

Milennia MIL-BTREC

Written By Anonymous, Arizona on Monday, March 17, 2014
Crutchfield Customer Review (What's this?)
 
Wonderful add on for any stereo with RCA in or Aux
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5 out of 5

Bluetooth

Written By AM, LAs Vegas, NV on Friday, January 10, 2014
Crutchfield Customer Review (What's this?)
 
This is exactly what I was looking for. Installed it in my R32 and it works exactly as I expected. The unit itself was a little bigger then I expected.
Pros:
Easy to use and easy to install.
Cons:
none
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4 out of 5

Milennia MIL-BTREC

Written By Anonymous, san diego on Tuesday, January 07, 2014
Crutchfield Customer Review (What's this?)
 
Works good once hooked up, but the instructions didnt say it is called something else on the cell phone when searching. I had to call tech support.
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4 out of 5

simple Bluetooth installation

Written By Service Marine, Wichita, KS on Tuesday, December 24, 2013
Crutchfield Customer Review (What's this?)
 
a pretty basic install just use your aux inputs and hook to 12 volt switched source and you can stream music from phone to your radio
Pros:
small package easy to install
Cons:
has a slight feedback when music is not playing
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5 out of 5

This thing is trick!

Written By John, Rochester, NY on Thursday, December 19, 2013
Crutchfield Customer Review (What's this?)
 
During my boat audio upgrade I added this on so I could stream songs or Pandora or iHeart radio from my iPhone while anywhere on my boat. This unit does that perfectly. After I gave a demo to friends, they all had to have one. The range is very impressive as well. Very simple hook up and it paired to my Bluetooth easily. It's awesome to be able to pick and choose songs or control the volume right from my phone. If other guests have a song they want to play from their iPhone they can also pair up their device to my system. One time it would not pair up right away so I shut off the power to the stereo and turned it back on which paired everything right up. I would highly recommend if you are looking for an inexpensive and convenient way to upgrade your audio. I'm thinking of hooking one up in my truck as well.
Pros:
Easy install Great range Clear sound Friends are impressed
Cons:
Sometimes a delay in pairing up to your device
3 out of 4 people found this helpful
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4 out of 5

Great product.

Written By Anonymous, Denton TX on Sunday, December 15, 2013
Crutchfield Customer Review (What's this?)
 
So far it's good. I've only had it installed for a few days but it works like it's supposed to.
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5 out of 5

Satisfaction

Written By Ernest A, Lancaster, CA on Saturday, November 02, 2013
Crutchfield Customer Review (What's this?)
 
I am completely satisfied with this product (Milennia MIL-BTREC). I have installed approximately four in stereo receivers without any problems what so ever. I will continue purchasing the them as needed.
Pros:
Easy to install, works every time.
Cons:
none
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3 out of 5

Music & Engine Noise

Written By Joe T, Ithaca, NY on Wednesday, September 04, 2013
Crutchfield Customer Review (What's this?)
 
This adapter works ok, however I am getting annoying engine noise along with the music. Had it professionally installed and after a second attempt to change it's location, I gave up and am using it as is. Tech Support at CF said it's probably a faulty AUX input on my 5 year old Alpine Unit that works great otherwise.
Pros:
Wireless music streaming from any BT device through your car audio system.
Cons:
Can hear engine noise over the audio system along with the music.
2 out of 3 people found this helpful
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5 out of 5

Great Bluetooth Streamer!

Written By akaHomerJay, Rogers, AR on Thursday, August 22, 2013
Crutchfield Customer Review (What's this?)
 
This little guy is a great value. Add bluetooth streaming to practically any system (especially if you get creative). Nice quality sound too.
Pros:
Easy to use design
Cons:
None for me.
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5 out of 5

MIL- BTREC

Written By Mario, Seal Beach on Friday, July 05, 2013
Crutchfield Customer Review (What's this?)
 
Excellent product. Wish they had this a couple years ago before I wasted money on a head unit. Easy to install No plugging in. No complicated buttons from stereo. Great for off road cars. I just ordered another one for my boat.
Pros:
Nothing to plug in, simple
Cons:
No control of treble or base or balance.
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5 out of 5

mil-btrec

Written By Fred, St Louis on Tuesday, June 11, 2013
Crutchfield Customer Review (What's this?)
 
Awesome product. exactly what I was looking for. Allows Bluetooth audio on radios that have rca inputs. very easy install and excellent sound quality.
Pros:
Easy to install, excellent sound quality, made for marine use
Cons:
None
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5 out of 5

Milennia MIL-BTREC

Written By Anonymous, Los Angeles on Thursday, June 06, 2013
Crutchfield Customer Review (What's this?)
 
Wow, when i first heard about this product a was skeptical, but once i installed and heard it for my self , i was sold, im ordering one more for my other vehicle..
Pros:
easy to install, DYS
Cons:
none
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4 out of 5

Great hard wired bluetooth

Written By JayR, Nashville, TN on Wednesday, June 05, 2013
Crutchfield Customer Review (What's this?)
 
Easy to install simple design. Works great. Installed in my boat and could not be happier.
Pros:
Simple, hard wired power connection
Cons:
Password required for login "0000" when pairing to Bluetooth no in the instructions. Maybe everyone else knows the default password for Bluetooth is "0000", but I was not aware.
6 out of 7 people found this helpful
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1 out of 5

Great Concept

Written By Matt, Chattanooga, TN on Wednesday, May 29, 2013
Crutchfield Customer Review (What's this?)
 
I really wanted to like this item. Wanted it on my boat. I bought the first unit and installed, but it had a short in it. The music would cut in and out any time the unit was moved or touched. Tried another BT source, same symptoms. Un-installed form the boat and tried it in my garage, same symptoms. Crutchfield is great, so I sent it back and got another. The second one came and right off the bat I tried it in the garage and there was tons of feedback/noise coming from the unit with multiple BT sources on two different stereos. I sent it back also. The third unit came. It worked great in the garage, no problems at all. I installed it in the boat, and it worked great sitting in the driveway. First time we used the boat at the lake the unit worked great at first, but then it started cutting in and out when we were cruising. Changed to my wife's phone as the BT source and it did the same thing. Finally decided I had enough and am sending it back too. I bought and will install an AUX plug so I can plug my phone into the stereo. Great idea, but poor quality.
Pros:
Great idea when it works.
Cons:
Poor quality.
2 out of 3 people found this helpful
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5 out of 5

The best bluetooth adapter

Written By 1R, Cookeville,TN on Thursday, May 23, 2013
Crutchfield Customer Review (What's this?)
 
Installed in my boat and RZR makes listening to music a breeze. No cables which is great on the boat. Unlike other Bluetooth adapters which have to be recharged this runs of the audio systems power. Would highly recommend.
Pros:
Easy to install
Cons:
None
1 out of 2 people found this helpful
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5 out of 5

Has many uses beyond marine stereos

Written By Donnie, Alabama on Sunday, April 28, 2013
Crutchfield Customer Review (What's this?)
 
This adapter is advertised for marine stereos, but it has many applications. In my case, I had no options for bluetooth in my 2005 GMC Sierra. By combining this adapter with a ipod interface I was able to create a bluetooth option. As long as you have access to a 12v power supply this adapter connects to anything that has RCA inputs. The options are endless.
Pros:
Versatility
Cons:
None
6 out of 7 people found this helpful
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9 questions already asked Show all answers

I have a Jaguar XK8 with factory-installed on type of phone, and want to know if this product will work with my car? [ Jarrel Stays  Jul 29, 2014 ]
1 answer
  • 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. [ Greg Staff  Jul 29, 2014 ]
So this cable is the only thing I need for bluetooth, or it is just an adapter and I also have to buy something else? [ xoxol  May 14, 2014 ]
1 answer
  • 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 Staff  May 15, 2014 ]
I'm looking at getting this for my Polaris rzr will getting this do away with me needing a head unit just will plug into amp and play thru bluetooth audio? [ Lee Armistead  Apr 12, 2014 ]
1 answer
  • I forwarded your question to an Advisor and they responded with the following: You could use the adapter with an amplifier directly, but I normally recommend using a line driver to boost the signal from the headphone output, such has item number 136CLRLC. That gives you independent volume control and better sound quality. If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat. [ Krissy Staff  Apr 15, 2014 ]
How do I know which head units (Radios / Stereos) are compatible with this item...? [ Roberto  Mar 21, 2014 ]
1 answer
  • I forwarded your question to an Advisor and they responded with the following: Any Headunit with a rear Auxiliary input would work with this unit. If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat. [ Krissy Staff  Mar 24, 2014 ]
How many amps does it draw? What size fuse should I use? [ Dan  Mar 05, 2014 ]
1 answer
  • I forwarded your question to an Advisor and they responded with the following: The Milennia MIL BTREC is has a very minimal voltage, I will not have any specs on it because of how low it is. As far as fuse's go, this will not require an additional fuse, it will just splice into the power and ground. If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat. [ Krissy Staff  Mar 06, 2014 ]
I have a Pioneer deck for my Honda Accord and the deck does not have an audio jack in it. It is a Pioneer DEH-P6000UB. I need to know where this product is installed at in the vehicle? [ Cody S  Jan 27, 2014 ]
1 answer
  • From the description on your receiver it looks like you have a mini-jack auxiliary input on the rear. This would plug into that connection (however you will need an additional adapter to convert from RCA to mini-jack). I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help get you the pieces you will need. [ Jeff Staff  Jan 28, 2014 ]
The AUX power, what Voltage does it need? [ balex  Jan 22, 2014 ]
8 answers
  • 12 volt [ RODNEY   Jan 23, 2014 ]
  • 12 Volt power source required. Bluetooth dongle does not include a fuse however, so make sure powere source has fuse protection. [ JOHN   Jan 22, 2014 ]
  • I build stereo receivers and they operate on 12V DC. The Bluetooth (MIL-BTREC) is hard wired into the 12V DC power source. Hope this helps. [ ERNEST   Jan 22, 2014 ]
  • I'm sure I just attached it to a 12volt source. [ BRYDE A   Jan 22, 2014 ]
  • + 12 volt DC I use this on my boat and play music with my iPhone Works well [ PHILLIP   Jan 22, 2014 ]
  • It accepts 12V DC. Any higher DC voltage level would require rigging something up (i.e. 7812 voltage regulator) [ BEAU   Jan 22, 2014 ]
  • 12VDC [ HUGO   Jan 22, 2014 ]
  • I have mine hooked up to 12 volt. [ COOPER   Jan 22, 2014 ]
Do you have to go through the pairing process each time power is applied to the unit, or does it remember the last paired device and connect without the need to pair each time? [ David  Dec 17, 2013 ]
5 answers
  • Yes, It remembers the last paired device and connects without the need to pair each time. [ JOSEPH   Dec 23, 2013 ]
  • the smart phone will remember the unit and doesn't need to be paired each time. [ JOHN   Dec 18, 2013 ]
  • It generally paired automatically, although if it does and I shut the car off then back on (gas station, accidental stall, e.g.) I often (not always) have to re-pair it. On a side note, the unit shorted and caused a tiny puff of nasty smelling smoke to billow from under my dash. It was great while it lasted (six months) though. [ [oname]   Dec 17, 2013 ]
  • Yes it pairs automatically. I used my phone and as long as I had the bluetooth turned on, it synced up. [ CHERI   Dec 17, 2013 ]
  • I have to pair it each time and you can only use one device at time [ RICHARD   Dec 17, 2013 ]
I am looking for a bluetooth adapter that will allow me to use my cell phone handsfree through my trucks aftermarket stereo deck. I understand this unit allows me to connect my smartphone and stream music/media through my aftermarket stereo but will it allow me to make and/or recieve phone calls? If so what is used as the microphone in this system or is this another add on component? [ Phill  Dec 17, 2013 ]
2 answers
  • You can hear the caller through the car speakers, but they can not hear you unless you speak into your phone from close range. [ JOSEPH   Dec 23, 2013 ]
  • It doesn't have a microphone so no you cant use it for a phone. It also registers as a blue tooth head set with your smart phone so it is only good for playing audio. Great unit easy to set up I have one in my 71 vette [ JOHN   Dec 18, 2013 ]

For a more in-depth review and enhanced detailed information on the Milennia MIL-BTREC, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_822BTREC/Milennia-MIL-BTREC.html ).