Hi, my 2001 F250 ex qld ambo, which was made right hand drive in the factory, so far, anything replaceable has been a direct fit.
Recently I purchased an upgrade factory radio/CD with an Mp3 upgrade. Checked the rear connections to confirm the suitability and the new one slotted straight in, works like it's supposed to! Unbelievable, an interchangeable part that actually worked without any form of modification Should go and buy a lottery ticket

Cheers Russ