My first post! I have a Beomaster 3300 and have just got a Beogram 5500 from e bay. The Beogram came with 2 phono leads and an earth wire. I have bought an adapter -female phono to 5 pin din ( the cable guy said only 5 pin needed) Where do I put the earth lead. At present without connecting it there is a bit of a hum ! Many thanks in anticipation.