HI there!! Im new on this site....

I just recived my new car and I started to install a Navi from compucn!!
My problem is that I got no sound! I have rockford system and im have tried with 1234OK and then restart the unit,but no sound!!

Ive got questions about the canbus,look at the picture!
I have one blue cable that says Amp power, where shall I connect that!!??
And the steering wheel control has only Key2 and GND wired!
The red cable key1 is not connected( is that right )

And one contact has only 2 cables, its that correct or do I miss something!!

Hope you guys out there can help me!!
If you Compucn see this, plz respond!!
Sorry for my english!!