bc retrofit
 

Hi,
I need your help ASAP.
I own 2004 X5 4.4 with high-ike cluster,but without board-computer and without nav.
I already retrofit monitor + TV.
I just bought board computer retrofit kit, but as I understand this kit does not fit my car,because I already have ike cluster.
My question is: how to get board-computer function?
Maybe i need only coding and I bought bc-retrofit mistakenly?
Waiting for you replays