Do universal Android radios have the grounding noise issue?

[StatusQuo]

My rnse Android radio has horrible radio noise. Do the universal double din have the same issue?


I was seriously thinking of ditching the stock look and installing a 10.1 Android Oreo unit.

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[rhfosu]

My rnse Android radio has horrible radio noise. Do the universal double din have the same issue?


I was seriously thinking of ditching the stock look and installing a 10.1 Android Oreo unit.

Sent from my ONEPLUS A5000 using Audizine mobile app

The answer is probably "not all but most". Problem is, regardless of how it looks, or the "brand", most of these are the same generic chinese crap made at the same mainland chinese factory. There is a 40 page b7 nav thread that goes into this. I just learned to live with the noise on my Xtrons unit.

However, if you're talking about getting a Pioneer (or other major brand) android unit, I would say "no". But, like I said, the cheap chinese junk, while cool, is always a crap shoot.

[StatusQuo]

The answer is probably "not all but most". Problem is, regardless of how it looks, or the "brand", most of these are the same generic chinese crap made at the same mainland chinese factory. There is a 40 page b7 nav thread that goes into this. I just learned to live with the noise on my Xtrons unit.

However, if you're talking about getting a Pioneer (or other major brand) android unit, I would say "no". But, like I said, the cheap chinese junk, while cool, is always a crap shoot.

I've installed these Chinese radios in a few cars and they have always worked well (but none of these were the B7 with the exception of mine). They have very good audio quality off the FM bands.

The main reason why I am asking is I am unsure if this is because of the way the car's electrical system is wired or because there is a common oversight in the B7 Android radio design.

If it's a design oversight, then a universal unit should fix the issue. If the noise is because of the way the car's audio system is wired, then only a stock radio can fix it.

My apologies, I should have more specific, I meant to say any double din radio; not just Android ones.

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[rhfosu]

I've installed these Chinese radios in a few cars and they have always worked well (but none of these were the B7 with the exception of mine). They have very good audio quality off the FM bands.

The main reason why I am asking is I am unsure if this is because of the way the car's electrical system is wired or because there is a common oversight in the B7 Android radio design.

If it's a design oversight, then a universal unit should fix the issue. If the noise is because of the way the car's audio system is wired, then only a stock radio can fix it.

My apologies, I should have more specific, I meant to say any double din radio; not just Android ones.

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The FM reception in my Xtrons is amazing. It is an awesome aftermarket radio, period, especially for the price. However, the trade off is that compatibility with all cars, and variations of that same car (bose vs non-bose, for example) is not guaranteed, and will likely not be 100%. My impression is that, for whatever reason, the B7 is one of those cars. I would love to hear an EE from VAG provide a response as to why.

However, like I said, A pioneer or sony (et al) unit will likely be more sorted out and not suffer from the ground noise, even if it is a generic DD unit. Remember, these chinese units, even though they are crammed into a case that LOOKS oem, are all the same, except forthe harnesses, and use the basic can bus language for the MFD. There is nothing "Chinese Manufacturer X" does to make their units specifically compatible with B7s, or any other car, beyond a plastic face that fits in the dash hole.

[StatusQuo]

The FM reception in my Xtrons is amazing. It is an awesome aftermarket radio, period, especially for the price. However, the trade off is that compatibility with all cars, and variations of that same car (bose vs non-bose, for example) is not guaranteed, and will likely not be 100%. My impression is that, for whatever reason, the B7 is one of those cars. I would love to hear an EE from VAG provide a response as to why.

However, like I said, A pioneer or sony (et al) unit will likely be more sorted out and not suffer from the ground noise, even if it is a generic DD unit. Remember, these chinese units, even though they are crammed into a case that LOOKS oem, are all the same, except forthe harnesses, and use the basic can bus language for the MFD. There is nothing "Chinese Manufacturer X" does to make their units specifically compatible with B7s, or any other car, beyond a plastic face that fits in the dash hole.

Yeah same. I really like the radio.

I'm thinking about opening it up and doing some more grounds and see if that helps.

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[Theiceman]

Has anyone tried a noise filter on the power line for this ? They are very cheap and probably worth a try


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[kt883]

Has anyone tried a noise filter on the power line for this ? They are very cheap and probably worth a try


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from my research

My 2005.5 Audi A4 B7 has BOSE, I had to use a HI/LO Line level converter AND ground loop isolators. I
would say when properly installed with these converters/filters that sound is on – par with the RNS-E,
maybe not quite as good but close enough I
can’t really tell. With the correct converters/filters, there is no hum/buzz/noise at all and the volume
levels are correct. Without the converters/filters when I just had the RCA connector hooked together as
suggested by the supplier the volume was a bit low and there was buzz at all times which got really bad
when the HID headlights were on (see more details on all this below). Bob Low is aware of this and may
work something out in the future. Christian from Enfig said he’s considering making a plug and play
harness for these as well since they are getting quite popular. 3b

3b. I've experimented some and found the PAC SNI-35 to be a very low cost and 100% effective HI/LO
converter with built in Ground Loop Isolation. These were very easy to install, I simply cut the
speaker output wires from the head unit, connected them to the SNI-35 input and then the RCA outputs
of the SNI-35 to the RCA of the supplied connector which mates to the vehicle harness (pictures below).
I set the Gain to about 25%, there is absolutely no more noise and the signal level is just right.
These were $10 each at amazon.com, here's the link PAC SNI-35

[rhfosu]

from my research

My 2005.5 Audi A4 B7 has BOSE, I had to use a HI/LO Line level converter AND ground loop isolators. I
would say when properly installed with these converters/filters that sound is on – par with the RNS-E,
maybe not quite as good but close enough I
can’t really tell. With the correct converters/filters, there is no hum/buzz/noise at all and the volume
levels are correct. Without the converters/filters when I just had the RCA connector hooked together as
suggested by the supplier the volume was a bit low and there was buzz at all times which got really bad
when the HID headlights were on (see more details on all this below). Bob Low is aware of this and may
work something out in the future. Christian from Enfig said he’s considering making a plug and play
harness for these as well since they are getting quite popular. 3b

3b. I've experimented some and found the PAC SNI-35 to be a very low cost and 100% effective HI/LO
converter with built in Ground Loop Isolation. These were very easy to install, I simply cut the
speaker output wires from the head unit, connected them to the SNI-35 input and then the RCA outputs
of the SNI-35 to the RCA of the supplied connector which mates to the vehicle harness (pictures below).
I set the Gain to about 25%, there is absolutely no more noise and the signal level is just right.
These were $10 each at amazon.com, here's the link PAC SNI-35

I talked to the dude on Vortex about this. I understand what's going on now. I ordered a couple sni-35s. I'll follow up when I get them spliced in. I have high hopes this solves my issues.