Sorry, I had read the FAQ but I am unsure if I will damage the head unit or not by using the 4v output when I should be using 1v. I will just give it quick go and see what happens ???
BTW - Yes the XA-300 did cost a bit (almost as much as a changer in fact) about £93 inc postage etc.. I couldn't find it cheaper anywhere, not even Sony Parts in Heathrow knew about it so what chance did I stand. I could have used the cheaper AX-107 but Sony made the last one in 1995 and are like rocking house shite. Even considered using some info I found to enable the inputs with a PIC but it was to iffy, just put it down to experience. It is a lot cheaper for me to use my headunit and not buy all the amps etc....
Cheers
Cris