The installation is very simple, it can be done with connectors or possibly soldering. In the case of the NG 9-3, soldering is not possible.
The advantage of soldering is that the hands-free mode can be more easily achieved later on.
With soldering, the BT Changer cables need to be connected to the wires of the connectors on the back of the Saab head units. Wiring diagrams will help with the installation.
If you prefer not to solder, it is always possible to use connectors.
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