A:Answer It sounds like you have an OEM stereo on your Fit. If the OEM is not XM satellite stereo receiver, I’m afraid that you might have to replace with an aftermarket stereo that has XM ready capability. You will then have to purchase the XM tuner attached to it. I have an Accord that has an OEM stereo but also has XM so I didn’t need a tuner. However, my other Honda I had to replace with an aftermarket stereo that has XM ready capability, purchased the XM tuner separately and now I have XM. You can check your professional installer for 2nd opinion.