Whelen X-Ecutor wiring Question

[firebuff17]

I am in a spare rig at work and it has the Whelen X-Ecutor siren WITH control head. The EQ2B is OOS and we have been using the X-Ecutor as our primary noise maker. Problem with this is that the control head is mounted forward on the dash and requires the drivers to reach far forward to operate and it becomes cumbersome, awkward, difficult at times to operate efficiently.
I have found install manuals online and I am trying to decipher if it is possible to have a separate manual button wired into the control head. Effectively, I would like to wire a momentary button closer to the driver, or even mount a foot switch, so we could operate the siren via separate switch OR the control head switch.
I do not know if it is the X-Ecutor 1 or X-Ecutor 2. Have not searched around the cab for the siren amplifier yet.

 

[MtnMan]

The 4 pin connector on the control head contains a white wire, which is the manual control input (+12V activated).

 

[firebuff17]

Perfect. I saw on the manual that wire listed as “wiring option 2” but I didn’t see what that wire activated OR if I could use that along with the control head.
This is perfect. Thanks MtnMan!