Albrecht BPA 500 Guide D'utilisation page 12

4.2. Priority order
If you would like to connect both a cellphone and GPS naviga-
tion system, the pairing order depends on your desired use of
them.
Phone calls: we recommend to create a „pairing chain": fi rst pair
the GPS to the BPA 500. Afterwards pair your cellphone to the
GPS. This way ensures that your phone calls are not interrupted
by GPS announcements.
If you connect both cellphone and GPS directly to the BPA 500,
phone calls will be interrupted by GPS announcements.
Mainly music listening: connect both devices directly to the
BPA 500. The following priority order applies:
GPS / music from cellphone / external audio source through
3.5mm AUX-In
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