●　supports vag-com version 409.1 or older ●　fully automatic support for 2002+ audi models with dual k-lines ●　precision-molded diagnostic connector made to fit all vw/audi vehicles, even those 　with "tight" trim around diagnostic socket. ●　led light indicating communication status ●　high quality ul certified serial cables (equivalent to ce) ●　built-in, electronic protection from the "aftermarket radio problem".