This item requires an SWCL to translate your steering wheel controls (sold separately)
A plug and play converter is usually needed to connect into an aftermarket radio without cutting wires (sold separately)
Product Features
- This is the most advanced radio installation harness we offer.
- The HILO box fixes low audio issue in your Audi. The signal of the factory radio is much higher (8-10 volts) than aftermarket radios (2-4 volts)
- The smaller box allows you to use your factory steering wheel controls with your aftermarket radio. You will need to purchase a SWCL (Steering Wheel Control Lead) to activate this feature since some cars do not have steering wheel controls. (see below)
- The smaller box reads the cars can-bus (data) wires. The following wires are transmitted to the factory radio through the can-bus wires. The small box converts the following wires into analog signals that your aftermarket radio can read.
Red– switched power turns the radio on and off with the key and keeps the radio on until you pull the key out of the cylinder.
Orange– Illumination wire dims radio when you turn on your lights.
Mint Green– Parking brake wire unlocks security features when your parking brake is engaged.
Purple with White Stripe– Backup camera reverse wire tells radio to Initiate back-up camera screen when you are in reverse.
Pink– Vehicle Speed Sense wire tells the radio how fast you are going to improve accuracy especially when you lose GPS or cellular signal.
- This harness is designed to connect directly into some older Blaupunkt brand radios. If you are not installing a Blaupunkt radio we have a PNP converter that allows you to connect to your new radio without cutting any wires.
Additional Information
- The knobs on the HILO box adjust the volume of the amplified speakers in the car. If you have Bose all the speakers are amplified. If you do not have Bose usually only the rear speakers and sub are amplified.
- Not all the wires on the cars harness will be used.
- Most cars that use this harness also use the AAA-VWAUD5 antenna adapter below.
Compatible Cars
Audi A3 2006-2007 Only compatible with cars with the RNS-E navigation radio.
Audi A3 2008-2013 Compatible with all radios.
Audi A4/S4 2004-2006 Only compatible with cars with the RNS-E navigation radio.
Audi A4/S4/RS4 2007-2008 Compatible with all radios except the single CD half height radios available in some non US markets.
Audi A6/S6/RS6 2004 Only compatible with the RNS-E radio.
Audi Allroad 2004-2005 Only compatible with the RNS-E radio.
Audi TT/TTS/TTRS 2007-2015 -Compatible with all cars. Some Audi TT require a digital turn on (mainly Bose but I have seen it on other cars) . -This video shows you how to disable the Digital turn on. https://www.youtube.com/watch?v=MmJcDeof-uE
We also have a harness designed specifically for the Audi TT to turn on the amplifier but it is more money. SRWH-TT2-HILO
Seth
Seth –
Plug and play! – This harness did exactly as described, and plugged right into my stock harness! I bought it as well as the PNP harness for my Kenwood deck, and steering wheel control lead. All items plugged in and made the entire install a 10 minute ordeal, no exaggeration. This product is great!
ryan
ryan –
top of the line! – I bought this for my 07 A4 after dealing with the wrong harness from other car audio shops. I bought the AUD3-HILO, pioneer PNP harness, steering wheel control harness, antenna adapter and dash kit. Everything plugged in to each other perfectly. Worked first try. The HILO adapter also has volume adjustment controls for the front and rear speakers which i did not know. Steering wheel controls work great, radio stays on when car is turned off until u remove the key just like factory and illumination. Top of the line products right here! Forget the rest!
Oliver Ceballos
Oliver Ceballos –
Top quality- easy install – I bought this along with dash kit and antena adapter + steering control and it made the installation and easy clean job on my Audi a4. Just wow very satisfied.
Constantin
Constantin –
audi s3 – pioneer SPH-DA120 – Purchased a brand new pioneer SPH-DA120 for my audi S3 8P.
Faced a problem with connecting it and solved it with the help of Enfig product! Now everything works as it should. Thank You
Justin Edmands
Justin Edmands –
Works well – This worked well in my 2010 Audi TT. I have a standard non-Bose system that I kept while replacing the base head unit with an Alpine ILX-007. This worked great out of the box and adapted the OEM cable to the new ILX cable. Great work!
Eric Oliphant
Eric Oliphant –
Audi a3 – All was good with equipment except the pioneer plug in did not stay in the radio…. Had to splice into original head units adapter to work … Also took a long time to get my order… Other than that everything worked as advertised
Roald F Torres-Martinez
Roald F Torres-Martinez –
Most Have! – The HILO made it possible for me to get my car stereo installed truly with just plug and play and every single function and rear speakers on my Audi continued to work flawlessly!
Dale A.
Dale A. –
06 Audi A4 B7 – Works like a charm on my 06 Audi A4 B7 with Symphony II.
Christopher Jones
Christopher Jones –
Seamless integration – plug and play…as long as you are not color blind. Totally worth every penny.
GONZALEZ MARTIN
GONZALEZ MARTIN –
good – thanks good product
Bryson Skiles
Bryson Skiles –
gotta have some radio – works well and harness is well made.
Aaron Dershem
Aaron Dershem –
Speaker levels are great now – This connected between the car and the radio-specific harness. With everything plugged in and turned on, it’s ridiculously easy to set the output levels for the car’s speakers. Definitely a must have!
Greg W
Greg W –
Great product… – Works perfectly with the Pioneer AppRadio 4 in my 2008 A4. I was pretty intimidated to take on this project by myself, but the YouTube tutorials and responsive email support made it much easier than I expected. I saved hundreds of dollars based on what local shops were quoting me to do the installation. Thanks.
Christian Carlson
Christian Carlson –
Worked perfectly! – Installed this in my 2007 Audi A4 S-Line with the non-Bose HU. Worked perfectly out of the box and all 4 speakers work now.
Colin Lacey
Colin Lacey –
Time saver! – Dont waste your time destroying factory harnesses – this made my install very easy. (2007 Audi A4 cabrio)
Daniel Sparrow
Daniel Sparrow –
Great plug and play option – Everything works awesome the e brake back up connection for back up cam connection for speed volume and steering wheel control it really is plug and play
Mr. D
Mr. D –
Great Product and Support – Enfig is probably the best company I have ever dealt with. They answered my questions before the purchase, sent my parts quickly and provided support during the install. Made it so easy a monkey could have done it. The products were high quality and look and sound great in my Audi TT.
david johnson
david johnson –
install equipment 2008 audi a4 – worked perfect, im so glad i bought this.
Mike Butschli
Mike Butschli –
Great product!! – My youngest son and I used this to install a new head unit in his 2007 Audi A4. I cannot tell you how thankful I was for this harness and the video provided by Enfig showing how to connect the harness to the existing stereo umbilical. The install was a complete success in no small part to this fine product. If I ever need to install an aftermarket stereo in the future, the first place I am looking for a harness is Enfig!
Sam
Sam –
Works! – Individual speaker gain is a nice touch as one of the 4 in my Audi TT is starting to go.
Daniela Hernandez
Daniela Hernandez –
Perfect – Works perfectly with the Bose speakers and symphony head unit
Ben Staneland
Ben Staneland –
Best mobile audio products ever – I was amazed how easy and trouble-free the installation was of the head unit replacement in my Audi. I swear my 9-year old son could have done this because it was as simple as clicking together legos.
The most amazing thing is that I was able to still get 100% functionality of everything in my car (steering wheel controls, hands free phone, etc…) without cutting or splicing a single wire.
No tools required! Everything was plug-n-play!
And Christian took the time to speak with me and figure out a custom order of the components I needed.
I wish I had known about enfig years ago!
Adrian Sandoval
Adrian Sandoval –
Simply the best! – This is the best friend for your Audi to install an aftermarket radio, with this you don’t have to do anything more that just plug and play use it in conjunction with the Enfig PNP-PIO0237 Steering Wheel Control Lead and you will not lost any function. Christian will give you the best customer support and will guide you in every step to install it or just follow the youtube videos.
Jonathan Zehner
Jonathan Zehner –
Just what I needed – Enfig makes the products to install a radio into your Audi with ease. Christian has been a huge help and this was exactly the harness I needed. Highly recommend enfig products for ease of install and customer service.
Francesco
Francesco –
Loom – Installed to a Mk2 TT Standard Non-Bose system. Great loom and really good quality and no ‘hi-low’ issues once tweaked with the box. Perfect.
ADRIAN FERNANDEZ
ADRIAN FERNANDEZ –
Installation – All work perfect. It’s recommended.
mitchell derr
mitchell derr –
Perfect – Everything works great far better than the others sold by big box. The rear speakers and sub along with stealing wheel controls!
DrunkJedi
DrunkJedi –
Christian is King – #1
Shawn Jones
Shawn Jones –
Enfig = Awesome Service – Christian at Enfig was great threw the whole process from the help with selection of what I needed till the end when I needed a bunch of question answered.
eric akbari
eric akbari –
Trust Enfig – This harness brought great sound out of my new stereo in my 08 Audi TT. Very high quality and easy to install. Takes the guesswork out of installation, especially if you aren’t a pro but enjoy doing the work yourself. Highly recommend this company for high quality aftermarket stereo parts and expertise!
Christopher Joffe
Christopher Joffe –
Great stuff – I love the look of the faceplate, as it’s the only one I’ve found that matches the interior of the car. I did not do the installation myself, but was told that the wiring harness made everything extremely easy.
Colin Thorne
Colin Thorne –
Audi a4 installation – Excellent service and your help wad really appreciated. The installation by a professional installer went witbout a hitch. Your specialty connectors were excellent for the istallation of the sony radio into my audi a4.
Bernard
Bernard –
Wire harness for Audi symphony – Honestly is the best wire harness you can purchase it works perfectly fine the sound is clear and, also purchase the steering wheel control module because it definitely works even with the rolling buttons on the steering wheel for my ‘08 Audi A4 symphony sound system(Truly plug n play)
Brenden Bickert
Brenden Bickert –
Sounds great – Everything works perfectly for my pioneer avh- x2800bs. I have a 2006 Audi A3 with Bose and this was definitely worth it to get the most out of my sound system. Worth the money for sure – don’t cheap out when it comes to your sound system, especially if you have Bose.
Dennis Watley
Dennis Watley –
Great Plug & Play – I have a 2008 Audi A4 B7 Avant and everything hooked up exactly like they said it would and I’m not a professional but it was every easy for me… Took me literally 15 to 20mins…. Definitely recommending this to my friends…
Paul
Paul –
Perfect! – Outstanding. Truly plug and play. The best part is, I had no idea the Audi Bose system could sound so good. I literally did not know what I was missing–not only did the HILO get rid of the non-existent bass, but mids and highs are so much clearer. Christian promptly responded to every question I had, and was a pleasure to deal with. When it’s time to do my next Audi, there is only one place I will turn to: ENFIG!!!
David Albin
David Albin –
Great solution! – Thanks to Christian my car stereo sounds great again. After putting in an aftermarket Sony stereo in my Audi A4 the rear audio had low output. Christian made a custom connection that returned the audio to its previous factory standard.
Steve Ochs
Steve Ochs –
Excellent – Enfig harnesses made the installation a breeze. Christian answered several questions I had specific to my car prior to purchase. He was always quick w/responses and his info was spot-on. The video was very helpful during the installation.
Andrew Pickles
Andrew Pickles –
2008 Audi S4 Pioneer NEX1300 – True plug and play. I wanted to keep my car all original and not hack up the wiring harness; but also keep my steering wheel controls. Job done.
Quality product, quality customer service.
I recommend Enfig.
Christian Jensen
Christian Jensen –
Great Product and Customer Service –
Omar
Omar –
pioneer AVH-X – Great product I would advise anyone who has an Audi to use this product plug-and-play it was awesome
Jeff Muldoon
Jeff Muldoon –
Audi A3 8P Install – Purchased a mounting kit, the Hi-Lo wiring harness, antennae adapter, steering wheel control, and a microphone for my 2011 Audi A3 Quattro.
Everything connected very well, and the install was a breeze!
The wiring harness was very clean, i had to cut and splice almost no wires, just had to ground the parking brake wire and connect the reverse wire to the camera.
I purchased the painted mounting kit to match my dash, it matches perfectly! Wanted to makes sure my wifes Audi looked clean, and mission accomplished!
Bonus – i just spoke to my father over the phone using the bluetooth connection and he said the sound quality was “Excellent”.
This is quality kit, and I certainly recommend it and Enfig Car Stereo!
Thanks Christian
Jonathan Roveto
Jonathan Roveto –
Needed for an Audi A4 B7 non-Bos HU replacement – This wiring harness combined with the SRWH-AUD3-HILO harness successfully provided the correct wiring circuit to power a new aftermarket HU for my Audi A4 B7 non-Bose setup. I originally went with another pair of harnesses against the recommendations by others, and I lost power going to my rears.
It turns out that, exactly as described by enfig’s product description, aftermarket HUs typically provide 2V output. Audi’s Symphony II+ HU provided 6V output, and thus, the factory amp was expecting 6V. My new HU only provided 2V, and therefore, the up-converter supplied with enfig’s harness (the SRWH-AUD3-HILO harness) provided the 6V that the amp was expecting. Problem solved.
Everything was also plug and play, so that was a bonus.
These harnesses are more expensive than other harnesses, but do you want your system to work or not? Because that’s basically the choice here.
Michael Dobson
Michael Dobson –
Be Comprehensive – Please be more clear and comprehensive on what a consumer needs for a complete installation. The piece by piece approach is so confusing for amateur installers. It’s not hard to do but with 4 or 5 different parts needed you should do more of a kit type of package based on car and new radio match. Your web page setup made me place 4 orders to get the very thing I needed.
Timothy Yearick
Timothy Yearick –
2007 Audi A4 – Everything works perfectly. Easy install just plugged in and it worked.
Salvador T
Salvador T –
Amazing product – So easy, plug n play, I loved it!
Colby
Colby –
Complexity made simple – Using this harness vs every other one available on the internet is a no brainer. It took me less than 20 minutes to fully install a new radio with full steering wheel controls.
Great product to save you time and frustration.
ROBERT WEBER
ROBERT WEBER –
2014 TT with Bose – Perfect – Works perfect with my Bose system in the 2014 Audi TT.
jonathan hattie