Welcome to 911UK
The only place for Porsche, 911uk is the definitive enthusiast and resource site for the Porsche 911.
Registration is fast, simple and absolutely free, so join up today for full access to the site and benefit from latest member offers.

Porsche Classifieds
Porsche Buyers Guides
Sell Your Porsche on 911uk
Create a Free Classified Advert
Search Ads
Classified Adverts FAQ
Trade Classified Information
Buyer & Seller Fraud Protection
Consumer Rights Act
Pre Purchase Inspection (PPI)
Porsche Car Sourcing
Porsche Cars Wanted
Official Porsche Centre Reviews
Model
Stock
Porsche 911
991 : 2011- 14
997 : 2004- 79
996 : 1997-2005 48
993 : 1993-1998 5
964 : 1989-1993 6
Carrera 3.2 : 1983-1989 0
Carrera SC : 1977-1983 1
930 Turbo : 1975-1989 0
Early 911 : 1964-1977 0
Porsche Other Models
Classic : 1950-1965 0
Boxster : 1997- 14
Cayman : 2005- 19
Cayenne : 2003- 8
Macan : 2014- 4
Panamera : 2009- 1
912-914-924-928-944-968 3
959 - CarreraGT - RaceCar 1
Car Parts For Sale & Wanted
Other Items For Sale & Wanted
Wheels Tyres For Sale & Wanted
Number Plates For Sale Wanted

Porsche Services
Porsche Body Shop Repair
Paint Protection & Wrapping
Porsche Classic Insurance
Porsche Classic Parts
Porsche Classic Restoration
Porsche Design Collection
Porsche Engine Gearbox Rebuild
Porsche Heritage & History
Porsche News
Porsche Picture Gallery
Win a New Porsche 911

Porsche Parts
Body Parts, Body Styling
Brakes, Clearance
Electrical, Exhausts
Engine Cooling, Engine Electrical
Engine Rebuild, Heating Cooling
Interior Incar, Lighting
Rubber Seals, Service Parts
Steering, Suspension
Transmission, Workshop Tools
Early 911, 911 - 930, 928 - 968
964 - 993, 996 - 997, Boxster
Cayman, Cayenne, Panamera

Porsche Model Range
911 [991] 2011-Current
Porsche 911 [991]
911 [997] 2004-Current
Porsche 911 [997]
911 [GT] GT1-GT2-GT3
Porsche 911 [GT]
911 [996] 1997-2005
Porsche 911 [996]
911 [993] 1993-1998
Porsche 911 [993]
911 [RS] RS-RSR
Porsche 911 [RS]
911 [964] 1989-1993
Porsche 911 [964]
911 3.2 1983-1989
Porsche 911 3.2 Carrera
911 SC 1977-1983
Porsche 911 SC
911 [Early] 1964-1977
Porsche 911 [Early]
Boxster & Cayman
Porsche Boxster & Cayman
Cayenne & Panamera
Porsche Cayenne & Panamera

911uk Site Partners

Post new topic   Reply to topic
Author Message
Cybot7
Trainee


Joined: 17 Dec 2017
Posts: 66
Location: Cobham, Surrey

2001 Porsche 996 Carrera 2

PostPosted: Mon Feb 12, 2018 5:37 pm    Post subject: Radio interference Reply with quote

Today was the first time I’ve done a decent bit of mileage with the radio on and I was very aware of spasmodic interference which I eventually put down to my iPhone. The car is a 2001 996. Apart from either not turning the radio on or turning my phone off is there anything I can do about eliminating the interference?
_________________
Nothing is foolproof to a sufficiently talented fool
 
  
View user's profile Send private message
   
EGTE
Hockenheim


Joined: 06 Jul 2015
Posts: 748



PostPosted: Mon Feb 12, 2018 5:57 pm    Post subject: Reply with quote

Have you got any charging devices in the car, such as for phones?

They can cause problems.
 
  
View user's profile Send private message
   
Cybot7
Trainee


Joined: 17 Dec 2017
Posts: 66
Location: Cobham, Surrey

2001 Porsche 996 Carrera 2

PostPosted: Mon Feb 12, 2018 6:00 pm    Post subject: Reply with quote

EGTE wrote:
Have you got any charging devices in the car, such as for phones?

They can cause problems.

Aha. Yes it was connected for charging att.
_________________
Nothing is foolproof to a sufficiently talented fool
 
  
View user's profile Send private message
   
gilessav
Monza


Joined: 04 Jan 2013
Posts: 236
Location: Oxford UK


PostPosted: Tue Feb 13, 2018 11:51 am    Post subject: Reply with quote

You've not got an aftermarket HID upgrade kit have you? my radio is perfect until the main dipped beams are on and then total distortion, apparently HID kits can cause this and mine is the same.....
_________________
Previously LHD 964
Currently 2004 C4S
 
  
View user's profile Send private message
   
Cybot7
Trainee


Joined: 17 Dec 2017
Posts: 66
Location: Cobham, Surrey

2001 Porsche 996 Carrera 2

PostPosted: Tue Feb 13, 2018 11:55 am    Post subject: Reply with quote

gilessav wrote:
You've not got an aftermarket HID upgrade kit have you? my radio is perfect until the main dipped beams are on and then total distortion, apparently HID kits can cause this and mine is the same.....

No. I’ve come to the conclusion having read about it and what I’ve been told is that the problem lies with the crap charger I’ve been using so I’ve bought a better spec USB charger. Hopefully that’ll cure the problem.
_________________
Nothing is foolproof to a sufficiently talented fool
 
  
View user's profile Send private message
   
iceboy
Spa-Francorchamps


Joined: 18 Apr 2013
Posts: 350
Location: Berkshire


PostPosted: Tue Feb 13, 2018 3:09 pm    Post subject: Reply with quote

gilessav wrote:
You've not got an aftermarket HID upgrade kit have you? my radio is perfect until the main dipped beams are on and then total distortion, apparently HID kits can cause this and mine is the same.....


Giles, I have this exact problem!!

Is there anything that can be done?

IceBoy
Dont know
_________________
Current cars:
996 Turbo S - Coupe/Manual
996.1 Carrera 2 - Couple/Manual
Mercedes S320 CDI - Every day car
BMW 320d M-Sport Plus - Mrs. Ice
VW Golf GTI 8v Big bumper - Summer Toy
 
  
View user's profile Send private message
   
gilessav
Monza


Joined: 04 Jan 2013
Posts: 236
Location: Oxford UK


PostPosted: Tue Feb 13, 2018 8:05 pm    Post subject: Reply with quote

Not sure.....

have new HID complete kit coming this week as the old ballast one side appears to have failed (just in time for the MOT). some of the advertised ones seem to claim that have some sort of way to avoid the interference but we'll see!

Interestingly HorizonLED's have discontinued the kit I ordered and have new 3 year warranty apparently higher quality kits which are MOT legal coming on so will be fitting that (£30 upscale of costs); will report back on if it makes a difference as nagging annoying!
_________________
Previously LHD 964
Currently 2004 C4S
 
  
View user's profile Send private message
   
toobusy
Spa-Francorchamps


Joined: 12 Nov 2009
Posts: 359
Location: Rutland - UK


PostPosted: Tue Feb 13, 2018 9:44 pm    Post subject: Reply with quote

gilessav wrote:

No. I’ve come to the conclusion having read about it and what I’ve been told is that the problem lies with the crap charger I’ve been using so I’ve bought a better spec USB charger. Hopefully that’ll cure the problem.


I have the same problem with phone charger/sat nav charger. I've tried various adaptors but no luck. Interested to see if yours works..

I have read that adding separate power for charging or an additional earth for the radio works!
_________________
2003 Carrera 4, KTM, Jota
 
  
View user's profile Send private message
   
Ghianightmare
Newbie


Joined: 25 Apr 2017
Posts: 20
Location: Dublin


PostPosted: Tue Feb 13, 2018 10:17 pm    Post subject: Reply with quote

I noticed radio interference recently when using a Lidl usb charger adapter in the cigar lighter. Switched to the branded energizer one that I also had in the car and problem disappeared. I have PCM 1
_________________
2002 Seal Grey C4S
 
  
View user's profile Send private message
   
Ghianightmare
Newbie


Joined: 25 Apr 2017
Posts: 20
Location: Dublin


PostPosted: Tue Feb 13, 2018 10:20 pm    Post subject: Reply with quote

I noticed radio interference recently when using a Lidl usb charger adapter in the cigar lighter. Switched to the branded energizer one that I also had in the car and problem disappeared. I have PCM 1
_________________
2002 Seal Grey C4S
 
  
View user's profile Send private message
   
Gottans
Monza


Joined: 25 Mar 2016
Posts: 177



PostPosted: Tue Feb 13, 2018 10:38 pm    Post subject: Reply with quote

Easy check is to remove the charger from the lighter socket and see if the problem goes away. If it does then it is most likely the charger.

There is something to be said for buying the oem charger as it 'should' have tested to make sure these sort of things don't happen. Mind you doesn't take much to mess up a radio receiver looking for signals in the microvolt range.
 
  
View user's profile Send private message
   
Cybot7
Trainee


Joined: 17 Dec 2017
Posts: 66
Location: Cobham, Surrey

2001 Porsche 996 Carrera 2

PostPosted: Sat Feb 17, 2018 9:16 am    Post subject: Reply with quote

Problem solved with this
Anker-PowerDrive-Speed-2-Quick-Charge-3-0-39w-USB-Car-Charger
_________________
Nothing is foolproof to a sufficiently talented fool
 
  
View user's profile Send private message
   
EGTE
Hockenheim


Joined: 06 Jul 2015
Posts: 748



PostPosted: Sat Feb 17, 2018 11:47 am    Post subject: Reply with quote

Thumb
 
  
View user's profile Send private message
   
toobusy
Spa-Francorchamps


Joined: 12 Nov 2009
Posts: 359
Location: Rutland - UK


PostPosted: Sat Feb 17, 2018 1:35 pm    Post subject: Reply with quote

Aha, thanks.
_________________
2003 Carrera 4, KTM, Jota
 
  
View user's profile Send private message
   
Cybot7
Trainee


Joined: 17 Dec 2017
Posts: 66
Location: Cobham, Surrey

2001 Porsche 996 Carrera 2

PostPosted: Tue Feb 20, 2018 7:26 am    Post subject: Reply with quote

I should add after a drive yesterday I discovered that in bad reception areas there is still some interference but overall it's cured the problem
_________________
Nothing is foolproof to a sufficiently talented fool
 
  
View user's profile Send private message
   
Dammit
Barcelona


Joined: 23 Sep 2016
Posts: 1361



PostPosted: Tue Feb 20, 2018 8:23 am    Post subject: Reply with quote

I had a chat with a friend of mine about this - he's a research scientist who specialises in electronics, so I understood maybe one word in ten (although that could be his accent, he's from the Midlands).

His belief is that it's a fault in the charger that runs through the common earth with the radio, and that separating the earth circuit would be a good idea even if changing charger to one that isn't sub-standard.

My understanding is that the body of the car is the common earth, and I struggle to see where you'd find another/separate one, but then I don't make the electronics for experimental medical devices, so what do I know?
 
  
View user's profile Send private message
   
Display posts from previous:   
Post new topic   Reply to topic   All times are GMT - 12 Hours
Page 1 of 1

 
Jump to:  

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You can attach files in this forum
You can download files in this forum
You cannot post calendar events in this forum