Saab 9-3 Bluetooth Retrofit

Hi, everybody, yesterday I installed a Bluetooth module in my Saab 9-3 from 2005, but I still can’t use Bluetooth. I still have the ICM3 radio and Bluetooth grayed out in the menu. The instructions say that you have to configure the Bluetooth adapter first via WLAN after installation. I don’t get any WLAN displayed. I also have an AUX input in the center console, which I can’t use either. Whenever I press the source button twice, k only the message “CD Player is not available”. Can anyone tell me why Bluetooth and AUX don’t work and what I can do now? Thank you in advance. Bluetooth module: https://bt-changer.com/shop/saab-9-3-2003-2006/