2013 w900 aerocab audio update

So a month or so ago I got put into this 2013 w900 liking it alot more than the Anthem I was running but you can tell there's cardboard speakers in there, I've already replaced the sleeper speakers (5 1/4") but this truck has 2 more speakers in the visor and 2 more in the pillar behind the doors plus a tweeter above each door, from what I'm seeing online the visor speakers should be 6x4 but I have no idea what size the pillar speakers could be? Anyone else done the update there before and happen to remember the sizes?

 

So the rest of the cab speakers were 4 x 6 speakers got then all swapped out now enjoying that full sound on the road