Symptoms
- Stations that used to come in clearly are now static
- Reception is worse in certain areas or while driving under bridges
- AM is worse than FM or vice versa
- Problem started after a car wash or roof work
Likely causes
- CommonAntenna disconnected or damagedA knocked or broken antenna, or a loose connection at its base, can badly degrade reception.
- CommonWeak signal areaRural areas, tunnels, or being far from a station's tower naturally cause static.
- PossibleAntenna mast retracted or broken (power antennas)Older power antenna motors can fail to extend fully, weakening reception.
- PossibleInterference from aftermarket electronicsDash cams, LED lights, or other add-ons can introduce electrical noise into the radio.
What to do
- Check that the antenna (mast or shark-fin style) is present, undamaged, and firmly attached.
- If it's a power antenna, listen for the motor extending it when the radio turns on, and confirm it's fully up.
- Try both AM and FM stations, and note if only one band is affected.
- Drive to an area with known good reception to rule out a temporarily weak signal zone.
- Temporarily unplug or turn off any recently installed aftermarket electronics to see if interference clears.
- If reception is bad everywhere and the antenna looks fine, the antenna cable or radio tuner may need testing.
Tools and parts
Replacement antennaSearch: “replacement antenna for your car make, model, and year”
When to call a pro
If the antenna and its connection look fine but reception stays poor everywhere, a mechanic can test the antenna cable and tuner.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.