All Things Mk5 > Sat Nav and Car Audio

Radio interference!!

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Richn83:
Could be worth checking the earth youve used for the reversing camera?, does the MDI have an independent earth?  Also have you removed the stereo to check that the extra cabling hasnt dislodged the Aeriel lead since fitting the two new units? (probably all stuff youve already checked.

Ive you used the fiscon adapter for the MDI try taking this out of line to see if that cures the problme?? if not   :confused:

JPC:
guna have a go at all these tomorrow afternoon when i get a minute!

Cheers rich! ;)

Poppa Dom:
Does sound like a poor earth return somewhere. Can#t suggest more than has been discussed already on this one.

JPC:
thanks for the replies guys.

Im working on the car now and im still scratching my head.

Ive connected the RNS STRAIGHT to the vehicle loom and i still have this problem.

So by doing that i ruled out The MDI, and Bluetooth. Not sure if i ironed out the RVC camera as it receives power even if the RNS plus for it is disconnected.

I checked the only earth for it i could find and that is earthed properly.

I do have this fault code..

Tuesday,25,May,2010,16:31:45:30084
VCDS Version: Release 908.2

                Address 37: Navigation       Labels: 1T0-035-680.lbl
Control Module Part Number: 1T0 035 680 C    HW: 1T0 035 680 B
  Component and/or Version: RNS-MID       H02 2680
           Software Coding: 040004400100000100
            Work Shop Code: WSC 00000 000 00000
              ASAM Dataset: ------------------------- ------ ()
2 Faults Found:

00821 - Antenna 2 for Radio (R93)
            007 - Short to Ground - Intermittent
             Freeze Frame:
                    Fault Status: 00100111
                    Fault Priority: 5
                    Fault Frequency: 1
                    Reset counter: 101
                    Mileage: 51800 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 01:27:17

Im wondering if this is a problem from going to my RCD300 to my RNS.

Can any experts rule out this is not because i need to swap pin 2 and 3 as in this link...

http://www.my-gti.com/1336/cd-changer-audio-sound-quality-problems-after-changing-head-unit

So pissed off at not having good radio signal!!

Richn83:
If the reverse camera isnt connected to the head unit then I would doubt that to be a problem, as it would be unable to affect the radio input.

I dont have any experience with the cd changer audio issue but that sounds to me like it would only affect the sound quality from the CD changer to the unit not the radio signal. 

So the error from VCDS looks to be your gremlim which ross tech give the following for
http://wiki.ross-tech.com/wiki/index.php/00821

so looks like a bad aeriel connection. (which we kinda already suspected)

Can I ask a couple of questions?  Firstly was there a nav in the car before fitting the MFD3?  What aerial do you have, shark fin, bee sting, or just rear window?

And was the earth you used for the reversing camera used for earthing anything else? ie could it also be the earth for one or both of your aeriels?

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