anyone use them??? how well do they work?? I think im gonna have to get one to run the project from the outside of the vehicle for burps, whats your thoughts on them?? such as this one http://cgi.ebay.com/PAC-IR-X-Infrared-IR-Remote-Eye-Extender-Repeater-IRX_W0QQitemZ200079005975QQihZ010QQcategoryZ60208QQssPageNameZWDVWQQrdZ1QQcmdZViewItem