... my ES has no Satnav, so I guess its similar.
The parts delivered to me were:
GW15HB1 - The Gateway 100
IPO2CR9 - The active cradle
A Brodit Proclip to mount the iPod where I wanted.
So I think you have the right bit!
My system dropped into something called "Gateway interface mode", which meant that the ipod started playing when I switched the radio on, but I could only control it from the steering wheel.
I'd suggest you download the latest manual from the Dension website (Dension Audio Systems
) and try that. You need to manually set your CD Changer to disk 6, then select the track you want (track 2 or 3) and finally press and hold the track skip button on the head unit (Fast Forward). It tool me 2 or 3 goes to get it right, but a read of the downloaded .pdf latest version of the manual helped.
The good news is that this is a one off exercise and then everything works the way you want it to.