I have seen several old posts about ML Radio problems.... wondering if there is anything new

2002 ES 300.... the other day sound started to crackle then no sound. Restarted car later and same events. Now no sound or crackling as all.

Was at dealer last week looking at NX and using ES as trade-in....gee timing is everything

any ideas that might be quick fix or if some generic amplifier can be used to drive at least a few speakers

Thanks