Finally found one.....boost gauge vent adaptor...

[SKOOSH1970]

Hi all , after months of trawling the internet for a vent gauge adaptor to fit the circular dash vent on the cab... I've found a chap who hand makes them in Spain...

https://www.ebay.co.uk/itm/Audi-A4-...ir-Vent-Pod-/282610876096?hash=item41ccebbec0

Can't wait for it to arrive and fit with my newly ordered boost gauge... will update with pics after installation..

Si.