would DJI goggle racing edition connect to a fpv drone that has Caddx Vista Air Unit? or is there any monitor that the air unit can connect to?  

Hi there. Thank you for reaching out. Can you please confirm if you are pertaining to the DJI Goggles RE (Black) on this LINK? If yes, unfortunately, this goggles are not compatible with the DJI Air unit. Please note that the Air unit is compatible with both DJI Goggles 2 and DJI Goggles Integra using firmware v01.01.00.00. If you want to use the Air unit with the DJI DJI FPV Goggles and FPV Goggles V2, you need to downgrade the firmware to v01.00.06.08. Hope this helps. Thank you for your valued support.