AUX Input Wiring

[MobileMe]

I have two analog inputs that need to be wired to a webcontrol board. I'm a little confused about the wiring. I know where the analog inputs go, but my question is the power and ground. The board has one power pin. Do I use this power pin for both sensors? According to the documentation, there are three analog grounds and one pin that is labeled just GND. Should I use the analog grounds for each sensor?

Sensor1:
+5 = pin 13
GND = pin 14
Input = pin 1

Sensor2:
+5 = pin 13
GND = pin 15
Input = pin 2

Should I use the same ground for both sensors like I am with the power?
ex:
Sensor1:
+5 = pin 13
GND = pin 4
Input = pin 1

Sensor2:
+5 = pin 13
GND = pin 4
Input = pin 2

 

[CAI_Support]

Hi, sorry for the late reply. Somehow we lost our password and waiting for reset in last couple days.

Analog input on the AUX connector facing analog groud. The +5 power and ground also facing each other.
Of course, all the ground are wired together eventually. By careful about ground, you can reduce the analog
noise level.