Sounds like antenna or amp
You may consider repairing it.
Would do a lot of work with PMR radio's (bouncers, taxi, events etc)
They are essentially the same radio, just different frequencies, and they are always blowing minor components and antenna being damaged.
If your radio modulating ok, It might be worth asking a local repair shop to have a look inside her. Possibly slightly cheaper than manufacturer, will void warranty etc, but sometimes the back street "radio shacks" have very intelligent people working in them. Sometimes they are just con artists too !
Just a helpful suggestion.