What does this button do ?

[PJW73NH]

While doing a tune-up on the engine yesterday, I found this button attached to the lower drivers dash. It says "Rally" on it and it is a momentary single pole switch. I tried to follow the wire and it disappears way up behind the dash. See attached pics.

Has anyone seen this before? I am afraid to push it because I have no idea what it is. Alarm? Engine disable? I'm not gonna chance it at this point. Looks to be aftermarket, but might be RT OEM.

Anyone?

Thanks.

[avanti]

If it is momentary contact, it is likely a "boost" function for starting your engine with the help of the chassis battery. If so (and if it is working), you will hear a click when you press it as the isolation relay closes

If it is not momentary, there might be aftermarket fog lights or some such.

[ThroatwarblerMangrov]

It powers up the Turbo Encabulator.

https://www.youtube.com/watch?v=Ac7G7xOG2Ag

No, really, I have no idea, but the fog light scenario seems logical.

[PJW73NH]

Sorry for the late update. I DID find out what this does. It apparently went to a set of fog lights that are no longer on the vehicle nor in production. I was able to contact the company.

[rowiebowie]

Originally Posted by ThroatwarblerMangrov

It powers up the Turbo Encabulator.

That video is funny. I haven't seen it in a while. Should I be concerned that I understood every word?