Hijack does not have anything special for getting the radio signal levels, but anything the stock player does to the radio, has to pass through hijack. And after v505, something in Hijack has slightly broken that pathway, making signal levels incorrect (or the AGC turned off, or something).

To see what the factory player does when reading signal levels, just turn on the "trace_tuner=1" flag in the [hijack] section of the player's config.ini.

After initial tuning and whatnot, there may be a periodic polling of signal level. If not, then the player must be getting it from the empeg's DSP rather than directly from the tuner itself.

Cheers