I have a question about Installing the Empeg in my Car

The car is a French Citroen Saxo.

I used a Neo35 before the Beautiful Empeg.

I want to understand :

There is an iso connector for my car : OK

There is an ISO Conncetor out the Empeg : OK

If I connect both together, How my AMP (Alpine) will work
(? : How control the Remote).

Or Do I have to use the ISO Connector given by Empeg with wires and realize each plug for each cable and so the remote out from the Empeg to the Remote AMP wire ?

If someone can understand my question , I''l be THANKFUL For an answer...