Does anyone know if it's possible to upgrade the Mark I tuner?

Or alternatively is there anyway to interface an outboard tuner so that the audio & controlling would be handled by the Empeg itself.

Preferrably with AM stereo, FM w/RDS, the new Satellite, shortwave & weather bands.
I know I'm asking for allot.

Steve

Mark I / #102 / 48g / Smoke / Custom Fascia
Best PC/Audio Investment Ever Made