I was asking my installer today about the bypass for when i get my 920bt and he said he would do it but did not recommend it. He said that it interferes with the gyroscope and would eventually cause the system to fail. Has anyone heard of this? At first i thought it was rubbish but he said he would do it if i wanted and seemed to know what he was talking about. THoughts?

He's full of crap. Also don't expect him to actually know how to do it. Show him the instructions on this site and tell him to follow these directions or not to do it at all.