Motorola T605 Motomanual page 13

7 Connect the power adapter cable's BLACK ground wire
to the vehicle chassis.
Note: Skip steps 8 and 9 if your vehicle entertainment
system does not support the telephone audio input
feature, or if you are using the external speaker
(supplied). This feature is only operational if the vehicle's
entertainment system supports this capability.
8 Connect the power adaptor cable's ORANGE wire to the
+ line-level telephone audio input of the vehicle's
entertainment system.
9 Connect the power adaptor cable's BLUE wire to the -
line-level telephone audio input of the vehicle's
entertainment system.
10 Inspect all connections.
11 Connect the black 6-pin connector on the power adapter
cable to the ECU.
12 Reinsert all fuses into the power adapter cable. Do not
replace any fuse with a high amperage fuse.
13 Reconnect the vehicle's battery.
Installing the Handsfree Car Kit 11