I'd go for a Quantum Tunnel Link Up, entangled particles.
See
Wikipedia;
Quantum entanglement is a physical phenomenon that occurs when pairs or groups of particles are generated or interact in ways such that the quantum state of each particle cannot be described independently of the others, even when the particles are separated by a large distance—instead, a quantum state must be described for the system as a whole.
Your limited abilities on the ship, when crewing, correlate with the difficulty of providing a large amount of bandwidth with the method, but (using Bell's Theory, EPR Paradox) you would be able to explain FTL sharing of a limited size information packet, instantaneous and interstellar. To provide more bandwidth you require more entangled particles greatly increasing the size of decoder needed, and soon becoming too big for most ships and certainly too big for the Core Dynamics encoders currently being produced in Cambridge (Earth, Sol).
You would need an encoder/decoder and, as it's in their interests to get you into dock to use their other facilities, there's no special reason why stations would allow remote access of commodity prices, and drop their firewalls, or lower their physical secuirty at this time. Likewise remote piloting may have been disabled by Core Dynamics under license of manufacture (Health and Safety during Travel, see TheSunGirl post above)
The Quantum link would need a specialist encoder probably too big for fighter or SRV to equip. For ship to fighter controls you can still use radio, to relay controls via the ship, so fighter range is still limited by manufacturer's license (brought in so fighters are readily identifiable by authorities, in case of crime) to their 30km range, as per 2.2.
Quantum Entanglement is not 'invisible'. The Q tunnel has to use some dimension, to get between A and B. Witchspace. While Core Dynamics have been pre-testing remote crew from their labs in Cambridge, we have seen (alleged) sightings of Aliens. In folklore, these beings are thought to occupy Witchspace and, if they were able to detect a quantum signal (and the evidence may be there, that they have recently been drawn in through curiosity) they may also be able to disrupt certain quantum frequencies at their discretion. Meaning that interstellar (quantum connected) telepresence would be open to disconnect at any time, by Witchspace parties unknown.