Were you able to find a CD of Ave Maria sung by him?
Yes, it is on his 'My Life Belongs to You' album and the Irish Tenor's 'Home for Christmas'.
http://www.google.com/search?as_q=%22%22ronan+tynan%22+discography&num=50&hl=en&ie=UTF-8&btnG=Google+Search&as_epq=ave+maria&as_oq=&as_eq=&lr=&as_ft=i&as_filetype=&as_qdr=all&as_nlo=&as_nhi=&as_occt=any&as_dt=i&as_sitesearch=&safe=images