|Quote, originally posted by M1LUM »|
| Re-scanning when changing location (by more than 50 miles) always pulls up a new full screen of stations.|
I'm not sure if you are aware of it, but the Phaeton is always re-scanning to find out what FM stations are within reach.
In other words, if you 'autostore' a set of stations at your home location, then you drive 100 miles away and look at the list of stations, you will probably find that none of your 'presets' are visible on the screen anymore. This is because they are no longer within reception range, so, the vehicle does not display them. If you were to drive back home, they would all appear again, showing as presets, as each one came into reception range. So, at any given time, the radio station list on the J523 screen will only show you what is actually available to listen to.
If you choose to do an 'autostore' when you are away from home, that will cause the strongest 6 stations to be stored into the presets. This can certainly be useful for identifying the strongest 6 - in other words, by doing an autostore and then pressing the preset hard-buttons 1 through 6, you can avoid the nuisance of scanning through stations that offer only marginal reception. But, it is not necessary to do an auto-store to refresh the displayed list of what is available, because the car is continually refreshing the list as you drive.
Personally, I have always had excellent FM reception on my Phaeton radio. I think the only variables (from car to car) would be how snugly the radio connectors are plugged into the antenna controller at the back end of the car, and the J523 at the front end of the car. I suppose one last variable might be how well the little 'fingers' on the antenna controllers make contact with the metal strips on the glass that actually comprise the antenna. This may be a concern, but that is pure speculation on my part.
It's quite easy to remove and re-seat the two antenna connectors at the J523 - see these two posts for more info:
J523 Front Information Display and Control Head – Removal Instructions
J523 Front Information Display and Control Head – how to replace (contains useful tips for routing the cables)
As for the antenna controller - it's a bit more difficult to get access to it, because it hides behind the headliner, at the very top of the rear window glass on the left side of the vehicle. To get a perspective on where this thing is, open the left rear door of the car (LHD or RHD, doesn't matter), put one hand on the top of the rear window glass on the outside of the car, and one hand on the top of the rear window glass on the inside of the car. You will note that there is about 4 inches of rear window glass that is not visible from inside the car... that is where all the antennas are!
It is a major nuisance (translation - massive interior trim dis-assembly) to get access to the antenna controller for the purpose of making sure that it is making good contact with the metal film on the glass, and to make sure that the two antenna connections (many more if the car has TV) are properly seated. I will eventually have to replace my antenna controller when I hook up my TV tuner, and when I do this, I'll take lots of pictures and post a 'how to'. In the meantime, I have posted a few illustrations and pictures below to give you all a general idea of where all these hidden components are.
However - having said all that, I wonder if the FM stations in the UK transmit at a lower wattage than those in North America? Most of the folks reporting problems are from the UK, and most of us who have no problems are in NAR.
Antenna Components on Rear Window of Phaeton
The actual Antenna Module that fits against the glass
Here you can see where the tangs (shown below) on the antenna controller touch the contacts leading to the antenna wires embedded in the rear window glass
These are the 'tangs' that touch the contact squares shown above.