I just purchased this stand with rear headphone jack for my X70 . I feel the X-Terra had two problems for me. I didnot like the headphone jack placement and it seemed that the arm cuff stand was to narrow and it tipped over easy. I seen this setup on the form and purchased it from Jeff Herke jjherke@yahoo.com. I feel he did a very nice job. I now have a rear headphone hookup and the stand base is almost 2 in. wider than the stock one. I should add that the arm cuff is made of metal and it is somewhat heavier than the stock one. This also should help alittle on counter balancing the coil heavy problem also. The setup came with arm cuff, arm cuff pad, stainless screw, arm strap, and the complete cord and hookups for the rear headphone hookup. It cost $55 shipped. Anyone interested I would get in touch with Jeff. My X-Terra is much improved for me. Happy Hunting Joe