I have a 04 audi a4 b6 avant. Ive used the VCDS and hexv2 tool before on it and had it working. I went to use it today and it fully recognizes the car yet will not connect to any moduals to pull any information. I always end up with the same error Failure to communicate (0). Even when trying to run a auto scan. I updated the software yet it still says update required. Ive attached photos of my issue. I have no idea why this seems to be unable to connect at all even though 5 months ago it connected just fine to my moduals. Aftermarket radio unplugged, Hexv2 lights up green. Tried with car running and with car off no differences