Rod knock or Main bearing knock?

[yaris2010RS]

the only ideas i have are

1. did u check the thread about the transmission cable holder hitting something? very vague but i dont know that issue exactly, i had come accross it before but cant quite remember the conditions

2. my moms camry has the same(ish) issues, the car makes an awkward knocking noise when in idle and only in drive or reverse and that sound has been tied back to the engine mount being warn out.

i personally dont think its anything as serious as a rod knock or bearing. the engine vidrates more at idle then running, as ur engine gets older its vibrates more at idle then when it was new. if anything has become loose in ur engine bay it with create a knock.

also; sometimes changing the tranny fluid helps.