So with the 4th gen someone spent a good amount of time coming up with a solution to roll up the back window using the key fob. Obviously we lack a rear window button on the fob. I've been thinking about whether or not this could be adapted to use the unlock signal or rewire the panic trigger signal to trigger the window signal with pac tr7. Id imagine if one was willing to use a second remote it would be really easy. But who would want to do that?
These are the two mods im looking at for inspiration.
Back Window Up Hack with Factory Key Fob
Ultimate camping mod- rear window up / down and hatch pop with ignition off!