You can do them together but make sure you really understand why you are getting answers wrong from anything and focus exclusively on the AAMC stuff the month beforehand.
That said, do not misinterpret that to mean, don't do ANY AAMC stuff until the month before, that's not what I'm saying. Just mix them up now and focus on AAMC last month only.
For instance, I might do AAMC flashcards now with Kaplan FL, then Kaplan FL with q-packs, then Kaplan FL with review from flashcards or q-packs; then I'd move onto the AAMC CARS q-packs and Kaplan FL, then to AAMC SBs, AAMC sample AAMC AAMC AAMC.... then do the SBs over again (if you time them right you could put a month or so between doing them twice... trust me, it won't be time wasted)