Intravee static / noise

J

jamiez

Senior member
 SW London
Hi

My ///M came with an Intraveee II setup already installed which was great. Ever since ive had the car ive used my iphone5 plugged into it and everything is fine - apart from there is ALWAYS static in the background and more prominently when you are navigating around using the buttons or the twisty knobs to go through albums etc. It very noticable, especially with a track is on and the sound is low.

I used to have this in the old car and thought it was a wiring issue but never really got round to sorting it. Wtih the new car its exactly the same.

Is anybody else having this same issue? The firmware is up to date...
On the flipside - when you switch to the Intravee and nothing is plugged in - is the sound from the speakers crystal quiet and then when you plug something in the music is 100% clear without any static?

Cheers
Jamie
 
Do you have a scotche style adapter to charge the phone?

Mine did the same... And outright refused to work with my ip5 with an adapter... So plugged a old nano instead.... Gen3 or earlier that can be charged via firewire.


Sent from my iPhone 5 using Tapatalk
 
I have a scorche adapter with my iPhone 4s and Intravee, but have no issues with interference/buzzing etc. Have you checked the routing of your cables? Are you using an OEM cable connecting your iPhone to the Intravee?
 
markeg said:
I have a scorche adapter with my iPhone 4s and Intravee, but have no issues with interference/buzzing etc. Have you checked the routing of your cables? Are you using an OEM cable connecting your iPhone to the Intravee?
Click to expand...

I am not using any inline charging device.
This problem occurs even when nothing is plugged into the connector. I can hear a hissing noise just when the selector is made so that Intravee is active - it buzzes more as i flip through the intravee menus...

I havent checked the routing - but anything i should be looking out for?

So anyone else with crystal clear Intavee?
 
Just checked mine - full volume, on Intravee (CD selection on head unit), nothing plugged in. There's no buzzing at all ....
Where did you route your cable through to, jamiez? Mine was routed through the transmission tunnel to the front, so is away from all other electrical cables.
 
markeg said:
Just checked mine - full volume, on Intravee (CD selection on head unit), nothing plugged in. There's no buzzing at all ....
Where did you route your cable through to, jamiez? Mine was routed through the transmission tunnel to the front, so is away from all other electrical cables.
Click to expand...

cheers - i need to check it on this car as it was fitted already. thing is i fitted my last one and it just went through the middle bit and not knowingly near anything to cause interferance....
 
You should not get any noise with the Intravee and everything connected, if you do then there is a problem with the audio ground.

If there is an 'open' connection, i.e. something is not plugged in, then the ground is floating and you may get noise pickup.

If you've had noise in two different cars with two different Intravee than that's quite interesting! Do you know if the type of head unit in the two cars was exactly the same (not just visibly, but actually the same part number)? Are the cars of a similar age?

There are a couple of situations that I know of that can cause noise:-

- In an E46 or E39 with a Nav retrofit, the CD Changer audio runs the full length of the car twice with an extra connection behind the dash, this can cause noise pickup which can be eliminated by using the non retrofit CD Changer harness.
- In the USA using a second generation Sirius tuner with the Sirius/CD Changer slave cable. There is a wiring fault in the cable, the audio ground pin in the wrong location.
- In the Mini with Business radio the CD Changer audio ground is open circuit within the radio module itself.

None of the above should apply to a UK Z4!

Depending on the serial number of the Intravee there should be a small jumper inside the Intravee near the audio connector. There is a block of 4 pins with the jumper connecting two of them. You could try moving the jumper from the pair of pins it is on to the other two in the block. This jumper was designed to help with noise when the Sirius tuner is used and changes the way the Intravee audio is grounded, it may have some effect. I can't remember the pin numbers off the top of my head, but I think the default is something like pins 2 and 4 are jumpered an you move it to pins 1 and 3 - I can check when I get home tonight.
 
RichardP said:
You should not get any noise with the Intravee and everything connected, if you do then there is a problem with the audio ground.

If there is an 'open' connection, i.e. something is not plugged in, then the ground is floating and you may get noise pickup.

If you've had noise in two different cars with two different Intravee than that's quite interesting! Do you know if the type of head unit in the two cars was exactly the same (not just visibly, but actually the same part number)? Are the cars of a similar age?

There are a couple of situations that I know of that can cause noise:-

- In an E46 or E39 with a Nav retrofit, the CD Changer audio runs the full length of the car twice with an extra connection behind the dash, this can cause noise pickup which can be eliminated by using the non retrofit CD Changer harness.
- In the USA using a second generation Sirius tuner with the Sirius/CD Changer slave cable. There is a wiring fault in the cable, the audio ground pin in the wrong location.
- In the Mini with Business radio the CD Changer audio ground is open circuit within the radio module itself.

None of the above should apply to a UK Z4!

Depending on the serial number of the Intravee there should be a small jumper inside the Intravee near the audio connector. There is a block of 4 pins with the jumper connecting two of them. You could try moving the jumper from the pair of pins it is on to the other two in the block. This jumper was designed to help with noise when the Sirius tuner is used and changes the way the Intravee audio is grounded, it may have some effect. I can't remember the pin numbers off the top of my head, but I think the default is something like pins 2 and 4 are jumpered an you move it to pins 1 and 3 - I can check when I get home tonight.
Click to expand...


Hi Richard

Thanks for your comprehensive response.

Yes the head unit was the same AFAIK - they were both the say model years, and both the SAT NAV units - however in my current car it has DSP whereas the prior one did not - not sure how much of a difference that makes to this puzzle. Not sure how I would go about checking the part numbers...

I read through your US spec car situations - but as you said, these should not apply to my UK car.

If you can check on the pins that would be good. One night this week i will go about taking the unit out and refitting it - checking all the cables etc and grounding points...

Cheers
Jamie
 
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