Gone through the instructions now a few times and basically you do the following:
- Disconnect negative battery terminal in trunk
- Remove plastic engine cover and both rear plastic covers along the cowl
- Layout Dinan wire harness along the engine cowl area behind the hood molding
- Disconnect 3 ECU connections (in order) on drivers side of the engine
- Connect Dinan receiving plugs into two of the 3 ECU connectors
- Install the 2 new Dinan ECU connectors and original ECU connector back in
- Secure wires near engine and along the cowling
- Connect Dtronic ECU to the 2 bundle wire connectors
- Connect postive wire from Dtronic ECU to battery post
- Velco the Dtronic ECU onto the fuse box
- Reinstall rear plastic covers and engine cover
- Reconnect negative battery in trunk
- Power on car without starting (Accessory Power)
- Clear any engine fault codes one at time until all are removed
- Start Engine
Note step 4 has to be done in order so the release lever for the connector has room to travel to the right and push the connector up and out of the ECU. Once you get 1 out of the way then 2 can release more freely, and followed by number 3.