Audio in and NAV connections

greencode

Member
I was getting the AUX in, supplied by fruitycarcables today and noticed that in the following diagram in Connector C I have wires going in to NAV/TV Audio and Phone Audio. I don't have phone or nav on my Z4 so wondered what they were for.

Any ideas?

audio.jpg
 
un1eash said:
Cars are usually pre wired to take optional extras, saves on manufacturing costs and time.

No pre wire for nav or phone in uk cars.

USA cars are pre wired for phone though.
 
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