ORIGINAL: siclick33
ZivBit, Sorry but YES
From the website:
Dual battery supply system with electronically on/off-switch and constantly regulated output voltage (5.9V).
and
An optional external switch allows for applications where no direct access to the pushbuttons of the DPSI BIC is possible.
I guess you are right on the BIC...
I have the old version one (BMS)
Good luck with it.
BTW - Boomarc.com have some great new switches with LCD monitors in them. Have a look here. I use one in my jet and its great.
Cheers,
Ziv