QuoteDislikedBut it seems that AUDJPY's movement is naturally heavily interlinked with movements in USDJPY and AUDUSD - pelase correct me if I am wrong on this point.
Of course they are. As you pointed out the cross-pair price is basically the multiple of the 2. Ie: current price of the AUDJPY is 98.00, USDJPY is 104.33 and AUDUSD is .9394.
So:
104.33 *. 9394 = 98.007
This is why we look to pair weakness with strength, so the net result is either weak*weak or strong*strong.
If the JPY gets stronger then the USDJPY will likely drop. If the USD gets weaker then the AUD must stay stronger, if it gets stronger then the JPY must stay weaker. If that is broken then the pair will drop.
Obviously the common link between the 2 is the USD, as you've noticed the USD can play a tremendous role (it and the euro both do, but the USD is more active right now. A weak euro will have a similar effect tho, watch for it.). Think it's a coincidence that the USD's reversal to the euro corresponds to a trend change across so many other pairs?