[tim22]

Hi,

Since my e90's (year 2006) Professional Radio pixel display faded out and it is only possible to see something in very cold conditions, I decided to replace the current head unit with another one from a different BMW model. I found one Professional Radio unit from X1 (year 2012). This unit's display shows everything perfectly, but once I put the unit in, I start to hear popping sounds through my speakers and when I turn on some music, sometimes the volume just disappears.

Could this be a coding issue? Meaning that I need to reprogram the new unit to work with my car?

I know that it is possible to buy a new pixel display and replace it, but at least in my country it would be just cheaper to buy another used Professional Radio unit and as far as I know units from X1 don't have that fading pixel display issue.

[starfox5194]

Most likely it's a coding issue. You need to know what sound package you had (base, hifi, or logic 7) and code accordingly. I've done the same thing to my radio with logic 7 and all works well, so it should not be a hardware issue.

[ctuna]

http://www.e90post.com/forums/showthread.php?t=687463