Sean
Glad you may have found it. Sure, bridge any similar value cap you have. You can even temporarily,? or permanently install the leaded cap on top to see if audio is restored.
I have certainly used leaded parts on surface mount boards, its nothing to fret about.
BTW smt caps when you have them tend to be easy to install with their higher mass than many other parts. But use what you have, and enjoy the radio. Good eyes in your discovery.
Curt
