You cannot use both the fixed controller and ALP Connect (BT controller) at the same time. You'd have to switch them back and forth manually.

I'm not sure why you're concerned about losing GPS capabilities with the STiR+ integration, and you're considering the V1 integration (which also doesn't have GPS). The V1 never had GPS capabilities; only YaV1 gives it that capability and that has nothing to do with the ALP.