Need help with Venstar add a wire & Honeywell Wifi thermostat installation

Hi all. We are in the middle of installing the Venstar add a wire unit to our furnace along with a new Honeywell Wifi unit and are a bit stuck. The thermostat end is finished and fine. However, at the furnace end - our board/terminals are different than the venstar manuals and youtube tutorials so not sure exactly what goes to what. It's a brand new furnace so really need to make sure we don't mess anything up. It's the Honeywell Model # RTH8580WF if that matters.

I've attached 3 photos to show the existing wires/terminals etc - any suggestions would be great. Thanks so much.

 

The board looks pretty standard.

Are the thermostat wires connected to the wires coming off the molex connector?

 

I'm looking at the manual, and it's pretty straight forward. (I've installed one before too, so I'm not only relying on the manual)

Instructions:

1. Shut the power off
2. Disconnect the thermostat wire connected to G (they're marked on the board - follow each lead to see what's what)
3. Connect it to the blue wire on the "add a wire"
4. Disconnect the t-stat wiring leading to y (leave the other wire which lead to the a/c)
5. connect green from add a wire to wire leading to g, yellow wire from add a wire to y
6. brown from add a wire to wire leading to c (leave the other wire which lead to the a/c), and connect the wire that was leading to Y to C
7. red from add wire to wire leading to r (leave existing t-stat wire)
8. At t-stat, old yellow wire now goes to C, G gets split by the diode, green lead to g, yellow leads to y, the other wires are the same.

Be sure to not confuse the wires leading to the a/c (if you have it) with the wires leading to the t-stat. Also, if you wire it wrong, you can blow the transformer in the air handler or board ->make sure the connections match those in the manual.

3.

 

Thanks for the replies all - about 30 mins after I posted we got a call back from Venstar and they walked us through it to confirm all was ok. Up and running!