Directed DB3 Installation Manual page 10

Additional remote start connections
(Not all of these connections may be required for your installation. Refer to the wiring diagram for vehicle-specific connections.)
Wire
12 Volts
Hood Pin [1]
Ignition
Starter
Tachometer [2]
10 403.MA3 2.41 2022 Mazda MX-5 Miata (Smart Key)
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Connects To
Wire Location
Driver Kick Fuse Box
BCM above driver kick, white 24 pin plug, pin 12
Start Stop Unit in steering column, white 24 pin plug, pin 10
Start Stop Unit in steering column, white 24 pin plug, pin 23
Camshaft Position Sensor, engine driver side rear, gray 3 pin plug,
pin 1
(+/-) Wire Color
+ White (50A)
- N.C. Blue
+ Lt. Green
+ Brown
AC Green