I have only mapped out the SMF1 (Sacramento) warehouse, but from what I've heard talking to other people near Amazon warehouses, most of the systems are set up similarly (8 standalone frequencies, 2 talkgroups per frequencies with for a total of 16 talkgroups).
For the SMF1 warehouse, I have my scanner programmed as a DMR One-Frequency system, with 1 Site (SMF1), and all 8 frequencies programmed into that one site, each with their respective color code assigned. I then program all 16 talkgroups in for the system. I have the system in ID Scan mode (not ID Search).
If they're programming like SMF1, I would recommend the following programming (below), using the method I describe above. This is just speculation, so I can't guarantee the talkgroups or color codes are accurate for the warehouses you're asking for.
Also attached is a letter Amazon has submitted with various new warehouses to the FCC that describe the different uses for the talkgroups, although it doesn't give what order they are in, but it can be assumed it's in order as listed.
Amazon.com-SCK1 (WRDA756)
451.7750 TG6100 CC7
451.7750 TG6200 CC7
452.0500 TG6300 CC8
452.0500 TG6400 CC8
461.1250 TG6500 CC9
461.1250 TG6500 CC9
461.8000 TG6600 CC10
461.8000 TG6700 CC10
462.1250 TG6800 CC11
462.1250 TG6800 CC11
463.6875 TG6900 CC12
463.6875 TG7000 CC12
464.2250 TG7100 CC13
464.2250 TG7200 CC13
464.7750 TG7300 CC14
464.7750 TG7400 CC14
Amazon.com-SMF3 (WRBV945)
452.0000 TG6100 CC7
452.0000 TG6200 CC7
452.2125 TG6300 CC8
452.2125 TG6400 CC8
461.3000 TG6500 CC9
461.3000 TG6500 CC9
461.6375 TG6600 CC10
461.6375 TG6700 CC10
463.3250 TG6800 CC11
463.3250 TG6800 CC11
463.6250 TG6900 CC12
463.6250 TG7000 CC12
464.1750 TG7100 CC13
464.1750 TG7200 CC13
464.8750 TG7300 CC14
464.8750 TG7400 CC14