If you, like me are using your trusty 170x monitor with your amiga, I have
news!
First, the 5-pin jack to luma and Comp. to Chroma trick WORKS LIKE A CHARM!!
Second, regardless of the position of the rear switch, BOTH audio jacks are
ALWAYS ON. SO get 2 RCA cords, one connected to the rear Audio input and one
to the front.
No need to shell out $3 for a Y-connector.