Not sure what set-up you have, but check these....
http://chrisb.users.superford.org/Gr...s_With_U85.JPG
http://chrisb.users.superford.org/Gr...And_Ground.JPG
http://chrisb.users.superford.org/Gr...s_With_U85.JPG
http://chrisb.users.superford.org/Gr...ithout_U85.JPG