TBH Ive not seen the interface sold seperatly, the set in the link I provided above works perfectly apart from the software which was a bit temperamental and in German...but you say you have a copy so you should be fine if your copy doesn't work I have an English version so can always send you one...i have the 6.5 disc and a 20 pin cable. just bought and adapter to try on an obd2 tool. david mc, where did you get your interface from? do you have a link to it? ta.