Anyone need either a Concert head unit or Alpine CD changer?

[Audi do]

No, it doesn't matter if you turn it up or down it simply either goes silent or blasting.
Interestingly enough though, I was out for a few hours yesterday & the sound returned to normal so I wonder if it is simply to do with the cold?

....and now the aerial isn't raising although I'm hoping that's just a fuse, I'll check it out over the weekend.

[ainarssems]

It is definitely down to cold, memory in the Motorola microcontroller chip can handle about 10k write cycles, so it wears off with the time and cannot be written again. It is still writable in the warmer conditions, with the time you will need hotter and hotter conditions for it to write correctly until it will not be writable at all. The chips are available from far east fairly cheaply, I researched this couple of years ago I think they were less than $10 per piece if you bought at least 10. I believe however is that they need to be programmed with the firmware before you put it the radio as they agre general purpose microcontrollers ussed in many aplications so you will need appropriate writer and the firmware(read it from the old chip or download).You can also get them as Blaupunkt part number which I believe come ready programmed but a lot more expensive, about £60 or you can get radi repaired for about £100-120.

Edit

I just opted to set the default volume at acceptable level and only rarely use volume knob when I know it is warm and should be OK.

[The_Laird]

Jeez, Ainars, how do you know all this stuff?

[ainarssems]

Originally Posted by The_Laird

Jeez, Ainars, how do you know all this stuff?

As above:

I researched this couple of years ago

[89forever]

Originally Posted by ainarssems

You can also get them as Blaupunkt part number which I believe come ready programmed

do you have a link to where these are available please?

I find with mine that when it is moved from cold it goes to loud, I turn it off and back on again and the volume has gone to the level I moved it too

but I want to fix it as it makes the little one go to tears (bloody wuss)

[ainarssems]

I find with mine that when it is moved from cold it goes to loud, I turn it off and back on again and the volume has gone to the level I moved it too

There are 2 possibilities/settings when switching on:
1. Resume last used volume
2. Use default volume setting every time it is switched on

do you have a link to where these are available please?

Blaupunkt part that I believe is ready programmed http://www.ebay.co.uk/itm/AUDI-CONCE...-/301090124508

Virgin microcontrollers that I belive need to be programmed before use :http://www.alibaba.com/trade/search?...xt=MC68HC05B32

[89forever]

missed this... sorry

many thanks for the information

[brasiliangringo]

Stereo still available Adrian ?

[Adrian E]

Long gone mate - got about £90 for it on eBay