> to the nuvi, right? what about nuvi power? Is the 5v reg on the T2 135
> module beefy enough to run the nuvi 350?
No. The 5v supply comes from the radio, and I think it's 50 mA max.
You'll need the separate power connection.
> Can the T2 switch the power for the radio on and off? I'm thinking in
> the as-is state, no since the radio supplies powe to the T2 when it's in
> TNC mode, right?
Right, no way to do that on the 135.
> thinking my motorcycle application with radio in saddlebag). When GPS
> is off or out of lock, T2 would power the radio down, but on every
> 30minutes for a quick "here I am beacon". Also, I have a motion
> activated headless GPS that would be really slick for this app too.
You could do this on an OT2m with a script.