Ha ha! That's the thread where I saw what the extra module on top of the cluster is (GPS). It's a good place for it, I suppose, though why it couldn't be under the
ICC's top cover is a question I'm asking myself. That's where I'd put it.
I found that thread while I was looking for nc_fairlane's build thread. Sadly he hasn't got many photos. Or Sync 2 CAN message details :(
None of the FG2 messages (climate or radio/amp) make the Sync 2 screen do anything for me, so until I get a hint of what are candidates for the screen to listen to, it's all going to be on hold. Maybe the gateway unit is translating them from FG2-like codes into some standard Sync 2/3 codes - but it seems like a lot of work to get that connected when it's all just guesses.
I'm still toying with ideas for fixing the hiss in the FG2's amp for the moment.. And waiting for a GPS aerial to arrive from eBay - as my first move will be to install the FG2 screen with SAT NAV - and then pull my 2 year older screen apart to take photos, check if the unit's power up sequence is shorter etc. to see if the firmware was modified to protect them.
So much to do, so few hours in the day.