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Hi Wanacoop,

I have a Kenwood DMX125 DAB here with me and I will be very slightly, by 1mm shave some material away from the lower aperture edge to have the 'nose' of the Kenwood fit through. I can't control the exact dimensions the manufacturers make their units of course and this one is just that tiny amount too big!

Personally, for the last 6/7+ years, I've used the free Tune In app on my phone to listen to any of the UK's radio stations as they all broadcast online. I'd then Bluetooth Stream to the Parrot Asteroid Smart I had in my Touring, so I've never used DAB in my car. However, the DAB signals around the country are improving and reception in a moving vehicle does vary according to the signal strength at any given moment and the quality of the antenna. Ideally, you'd have one in the middle of the roof, but that just wouldnt look right! If a good proportion of your drives will have you listening to the radio, I'd say to get a good quality, short stubby type DAB antenna that has a short 2/3 inch mast that would fit where the OEM telephone antenna would have been on the top of the rear wndshield.

Other than that, there's no showstoppers in using the DMX125DAB. If your car has OEM Satnav, you'll need the extension harness from the back of the car to the dash area. If you're OEM setup is the DSP one, then ideally, you'd remove all the OEM modules and replace with a good 5/6 channel amplifier and upgraded speakers/sub all around.

Drop me a PM if you like about the potential routes you could take with your car. Plenty of information online with other owners and their audio upgrade routes too.

Cheers, Dennis!
Howdy Dennis

Looking to grab one of these from you! I sent you a pm, please reply before quarantine ends :)

Josh
 

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Hi Josh,

I've got your PM and unless quarantine is lifted in the next few hours, I'll easily be able to reply !

Cheers, Dennis!
 

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Really happy with the way my install turned out. As you can see, the NXG-39 looks OEM. I also turned the cigarette lighter into a USB adapter from the back of the Alpine unit. Still cleaning up the wires in the back, but it sounds and looks great. I highly recommend Dennis' adapter. Great quality and a perfect fit.
 

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That looks great!!

I will be looking to do something similar once funds are available. Things are a bit tight in the current climate..
 

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Hi,

Haywood - I'm glad you got your NXG-39 safely and have installed it quickly and importantly are happy with how everything has come together for you! I like the equipment fitting neatly in the OEM boot/trunk location too!

Wanacoop - Whenever you are ready ! it's a serious situation for everyone currently and everyone is hoping the virus situation recedes safely as soon as possible. Talk with you soon.

Cheers, Dennis!
 

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Hi,

Haywood - I'm glad you got your NXG-39 safely and have installed it quickly and importantly are happy with how everything has come together for you! I like the equipment fitting neatly in the OEM boot/trunk location too!

Wanacoop - Whenever you are ready ! it's a serious situation for everyone currently and everyone is hoping the virus situation recedes safely as soon as possible. Talk with you soon.

Cheers, Dennis!
Hi Dennis,
i’m new to the M5board community and am so glad i found this thread. i have wanted to install an aftermarket audio unit for some time now and am so glad you have created the solution to my problem. I would like to order the NXG-39. Please let me know how to place an order, thanks!

Lee
 

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Hi Lee,

Welcome to the forum ! a lot of fantastic and very knowledgeable members here who can and will help with any aspects you have with the car !

I'll send you a private/direct message as posting contact info on a forum just gets harvested for sending spam.

Thanks for the kinds words.

Cheers, Dennis!
 

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Hello! At first you were adding the whole system, but got stuck on the radio. What about adding the after market amp, and the wiring of the speakers? Can anyone please help!!!!!!!
 

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Hello! At first you were adding the whole system, but got stuck on the radio. What about adding the after market amp, and the wiring of the speakers? Can anyone please help!!!!!!!
Not sure on what you're asking?

Are you having problems with your audio? if so, I'd suggest you create a specific thread about what you are trying to do and any pictures that are relevant.

Cheers, Dennis!
 

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Hi X_Fonsoe30,

Welcome along to the forum!

I've dropped you a message as requested and with some information.

Cheers, Dennis!
 

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Hi Peter,

To answer your question and for reference for others to read, have a look at these pictures;

Rear of the PCB;



Front of the PCB;



On the 'front' the LED's are laid out in the middle of the buttons to give an even spread of light. When the 12V lead is connected to the wire in the loom of the car where the heater controls lighting is, then the brightness can be adjusted in conjunction with the dimming function controlled by the thumbwheel.

On the 'rear' of the PCB in the picture and on the left edge, there's a Port that I've incorporated. When a button is pressed, it's detectable and when wires are fixed to the connector that fits into the port, those wires can be connected to another product/accessory, such as heated or massaging seat controllers, Air Ride controllers, TPMS systems etc etc. I've provided this option via the Port so that customers can choose what and when they'd like to have something connected up. I'm able to laser etch any symbols/characters on the NXG-39 buttons, so a custom one to match the function needed and connected to can be done as an option.

Cheers, Dennis!
Can those PCB buttons be used to control aftermarket features such as electric exhaust valves, garage door opener, control a relay to cut-off the ignition switch (theft prevention), etc.?
 

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Can those PCB buttons be used to control aftermarket features such as electric exhaust valves, garage door opener, control a relay to cut-off the ignition switch (theft prevention), etc.?
Hi Nyc951,

Yes, they could be used in this way ! I designed the PCB to have a port and to which a connector can be plugged in. Each button press is detectable and so via the port/connector, a wire can be taken to a 3rd party accessory/circuit etc. Going this way provides flexibility to customers who have specific things in mind. I can then have the symbol/characters on the button caps laser etched to a matching one for the function to be controlled.

Cheers, Dennis!
 

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Hello and am new to this site.
Located on Vancouver Island on west coast of Canada. What a great resource for e39 fans.
I am going to upgrade the head unit in my 1999 e39 540i and what Dennis has done fills the bill exactly:
All I want is access to my digital music and a clear, stable audio signal for my stock DSP Factory sound "Business CD" system. I will be upgrading the speakers next.
Everything else is a bonus.
How do I go about ordering your components as Canada has a preferential trade agreement with the UK, this is much better than trying to deal with US tariffs and rules.
 

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Hi Bent,

Welcome to the forum !

Thanks for the kind words about my solution :)

The NXG-39 I developed with the idea to have a high quality head unit with the OEM look in the dash and then to use a similarly excellent quality external amplifier and then upgraded speakers/subwoofer products to provide an excellent audio performance level. None of the high quality/reliable head unit brands have models that communicate with the OEM DSP amplifier directly. If you wish to keep the DSP amp, it becomes more convoluted to use such a head unit with it - to the point that most owners don't bother and then choose one of the chinese replacement head units that can communicate with the DSP amp. I'd suggest that if you are already thinking to upgrade your car's speakers, then choose the best ones for the budget level you set yourself and run them for the initial stage with the high quality head unit you choose with the NXG-39. Then, later as time/funds allow, you add in a suitable aftermarket amplifier and run the same speakers so that they play even better / more efficiently. The OEM DSP amplifier / speakers you could either store away in case you decide to sell the car and swap them back in or, sell off soon to recoup some money.

In terms of ordering and trade agreements with the UK/Canada, it is straightforward to send items over to you - in fact, there's already an owner in your city with the NXG-39 :)

Cheers, Dennis!
 

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Hi Dennis:

That sounds like good advice, I'm fairly experienced mechanic and nearly illiterate regarding sound electronics, though I do run UK built Audio Note tube amps and speakers in the home....
I am definitely not in love with the old school DSP technology, and would instal a better amp.

I enjoy the steering wheel controls but its no problem to reach over and use the head unit.

Do you have any thoughts or recommendations for the front door speakers and the rear shelf speakers? It is easy to get one of your recommended head units here plus I have a couple of hi-grade amps sitting in the shop. What is the cost of the NXG-39 and your preferred payment method?

Do you have a website with items listed?

Thank you for your excellent explanations and detailed response

Cheers
Brent
 

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Hi Brent,

Some vintage home Hi-Fi is utterly gorgeous to look at and their sound can be charismatic too! I sold off all my home hifi years ago but will want some modern specific medium range level Hi Fi components again in the near future!

It sounds as though you do like/appreciate excellent audio sound quality, so it's absolutely possible to get a very good performing setup in the car that indeed sounds warm, precise, detailed with excellent sound staging and imaging and all at an 'intermediate' level of cost. There's some excellent brands to choose amplifiers and speakers to help achieve that. You can get steering wheel control interfaces from the brand of head unit you purchase, or from aftermarket specialists like Connects2/PAC etc, so that aspect is easily covered for you.

Website is in development as more products come through the pipeline that I'm working on, for now I do have a post up on the BMW5 forum;

I've replied to your PM as well !

Cheers, Dennis!
 

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I'm a little confused with the AUX support for basically all of these units. I wish there were an input on the front of the unit but can't seem to find anything like that. So for AUX it seems like it must be placed in the glove box somewhere? Doesn't feel very aesthetic to the rest, having a loose cable coming out from the glove box. Anyone have any suggestions?
 

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Hi Malmbeckjohan,

'Aux In' nowadays is pretty much outdated as many people have smartphones which have the ability to stream audio from local digital music filed stored on them or, via music streaming services like Spotify and Pandora etc. The popularity of plugging in a handheld MP3 player or other wired device is waning quite rapidly for when owner choose to have a modern/new head unit installed. Many head units have Apple CarPlay and Android Auto so by 'plugging in' your phone in effect becomes the 'aux in' device. If you have an iPhone, then locally stored music is treated as though it was an ipod.

What device would you want/wish to plug in ?

Cheers, Dennis!
 
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