Is there any cross-compatibility between the 5000 series and 4000 series screens and/or peripherals? I've got a couple of 4500sEE (with engine monitoring) units complete with compass modules, and the opportunity to purchase a used AF5500 (screen only). Can the 5500 be used as a 2nd screen with the 4500 hardware, or must it have the new SV-ADAHRS-200 & SV-EMS-220 modules for AHRS & engine monitoring?

Alternatively, can a 4500 be a 'slave' screen to a 5500 with the new AHRS/engine module? Or partial compatibility, using the new AHRS but the internal engine module in the 4500?

Thanks,

Charlie