How do I go about ‘testing’ the gps/slave all in one accessory? I’d been waiting for a DM but haven’t seen anything. I really just want to buy one, but, if they aren’t available for purchase, I’ll test one. Whatever it is, I need to get rear cam and gps going sooner than later.We have a new version of this, do you want to test it? It is a waterproof camera with GPS bundle.