A:
I bought mine with the Power Connect vehicle kit. The kit comes with the Aux. cable. I use it for my RV and the cabin speakers work great with it, and of course if your stereos has the aux, cable connection as mine has. If you have a portable bluetooth speaker with an aux. connection it works great on that also, my bluetooth speaker has it,s own volume control which helps. l also use that speaker with my Stratus 7 indoors with a separate power adaptor sold separately so I can use the sat. receiver around the house. as long as the antenna is near the window it works great.
I also have an old RoadTrek RV, it has an older stereo without the modern USB or aux. cable connections, but it has the cassette. I use the cassette adaptor with the aux. connection on one end and it also works great.
I hope that helps a little...