What is the designation on the rack? The single Rx 24v mount was the MT-5/ARR-2 while the 12v one was the MT-7(?)/ARR-2. Best regards, Michael, WH7HG BL01xh http://www.nationalmssociety.org/chapters/NTH/index.aspx http://wh7hg.blogspot.com/ http://kludges-other-blog.blogspot.com Hiki Nô!