Yes of course . We know about RFI(Radio Frequency Interference), when we search about the EMI(Electromagnetic Interference), we undrestand that they are similar and often have the same causes and solutions. EMI includes RFI but also includes non-radiated interference, such as line noise coming in from power or control lines.
If you have installed a solar system that converts the sun's energy into electricity and at some point injects electricity into the electrical supply grid, then your system has an inverter.
EMI can come from many sources. Almost everything in your home or car emits some EMI, including fluorescent lights, TV's, cordless phones, electric tools, auto ignition, etc. In solar and DC systems you often have additional sources, such as switching power supplies, charge controllers, DC light ballasts, and inverters (especially modified sine wave types). Nearly all charge controllers send pulses instead of a steady voltage/current to the batteries. High power digital pulses are one of the worst EMI sources.
I think you can solve your problem by set the cover-kit on your radio's Antenna. I think your problem will solve.