dpr74

New here so Hi, I'm after some information if you can help. I'm working on a project car and i'm using the A4 2.5 V6 as a donor. so far i have the fuse box (ecu/engine bay & driver side dash) the CVT ecu from under the front seat. but where would i find the abs and airbag ecu? and can you think of anything that i've missed? for example, the sensor for the deployment of the airbag is that in with the engine harness or somewhere else. Thanks.