This should be quite an easy question.. and the only reason I'm asking is because three different websites advised I need different wiper sets! Can anyone tell me which bosch wiper set I need for a 2004 A3 2.0t sportback. One seller on ebay suggests A837 another A830 and halfords AM980! I know they are 24" and 19" but want to make sure \i have the correct connector type. Any help?