Hi,

I am looking to replace my existing audi chorus headunit with a concert unit on my 2002 (B6) A4, and having looked for a second hand, have noticed that there are varying part numbers for what looks like the same headunit.

Could someone tell me what the difference is between concert units starting with the "8E" prefix and ending in different letters (ie. E, M, P etc...). I have seen this model and was wondering if it would be suitable: "8EO 035 186 M"?

Thanks