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Old 02-20-2009, 06:08 PM
KiwiJochen KiwiJochen is offline
Join Date: Dec 2006
Location: Switzerland
Posts: 2,575
KiwiJochen is on a distinguished road
Originally Posted by whatheheck
Can you kindly send me a link showing which wires I need to tap to for the Nav audio line out?
Easy: there is a twsted pair of wires on the nav blue plug. Normally blue/ brown and blue/red. On some cars yellow/brown & yellow/red

red stripe is signal
brown stripe is ground

Fit around a 1 to 10k-Ohm potentiometer

solder one end of pot to brown stripe wire
Cut red stripe wire, solder nav end to other side of pot
Solder radio module end to wiper of pot.
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