where can I find the serial number for my audi 4?
as above, I need to find a serial number for my audio 4 for returns purposes. The box and manuals have several numbers printed on them. any ideas?
I think it’s on the bottom of the unit, with S/N before the string of numbers
Thankyou!
I didn’t want to email a random number, ill send that one though. Thankyou!
My audio 4 cracks and pops and the sound distorts randomly for so many seconds 
Does this on various settings on my dell, my mates sony vaio, and my GF’s macbook pro.
I have never liked the sound of the audio 4 even when it was ok.
I really want an Xone 2d as a replacement.
That’s really weird. Well, good luck to you.
The Serial number of an Audi A4 is on the ECU. 
It took me a second to realize that that wasn’t an Audio4, but an Audi, which was exactly what I thought he was talking about when I first read the post
LOL @ Tekki! you beat me to it!
GMTA JesC!
GMTA!
haha no way, bad typin error!
Didn’t even realise.