Review on 🚗 Enhance Your Car Stereo: SiriusXM FMDA25 Direct Adapter by Patrick Myers

If you're using the XM tuner's standard FM radio modulation capability, this direct-wired adapter will dramatically improve your sound. It's like going from flat, static radio quality to CD quality with much better separation of bass and treble. FM frequencies in your area." This reduces potential interference when you select a channel that doesn't compete with a strong signal. The old version of this adapter (Audiovox silver metal box) had a side connector for the XM antenna. The new version (Sirius Plastic Black Box) simplifies the wiring, so the XM antenna connector can be plugged directly into the XM tuner, no need to daisy chain the adapter first.The connection method is very simple.The hardest part is figuring out how to routed the wires so they look good in the car, in our car it was behind the factory radio and the adapter wire goes through the A/C duct and sticks out through the vent so the wire is hidden behind the XM tuner, which is also attached to the ventilation opening.