AU Headlights

[Caprobbo]

Hi all, doing a XR8 ute transplant into a MK3 capri.The problem is when turning on the high beams (quad headlights) the low beams go off, only giving me the highs,but when I pull back on the high beam stalk to flash high beam I get all four.I can hear the high beam relay come on and the low beam relay go off when pushing the stalk down to the high beam position.Have two wires that are spare,green with orange stripe and have power to them on high beam and flash mode.If i put them to dead low beams i get all four but then this causes the high beams to stay on when I switch back to low beam-being back fed by the low beam current?.I cant work out why the low beam relay clicks off when switching to hi beam-earth problem maybe?.Got me stuffed after all the wiring integrating from the falcon to the Capri this seemingly simple problem has got me stumped.