A new audio cartridge for the Plus/4 will be available soon. This cartridge has the following features: 8580 SID support. 3.5 mm audio jack. C64 compatible joystick port. AMIGA mouse support. DigiBlaster playback emulation (8-bit D/A). SID base addresses $FD40, $FE80 or $D400. In the next 2 to 3 weeks the first series is being assembled. You can read more about the cartridge in the comprehensive (English or Hungarian) pdf manual.