How do you figure the radio has the ability to cycle between 5 different zones? If you need more than 16 channels get an XPR7350, if you need more than 32 channels get an XPR7550
16 channels according to the OEM Mototola Spec Sheet
https://www.motorolasolutions.com/content/dam/msi/docs/products/two-way-radios/mototrbo/portable-radios/xpr3000e/XPR3000e_DataSheet.pdf
I believe that given the age of the P7200, below 11 is almost certainly required and I'm not sure if ProGrammer requires a key or not. Regardless, I believe the 7100/7200 may be one of the only radio series that can do true NAS without an AAC.
Connecting a speaker improperly isn't a "fatal" error so let's not be dramatic here.
Some people don't want to feed into the Motorola honeypot and spend $30 on a Mototola speaker when a $10 one will do the same thing.