Installing Android Head Unit. How to hide the GPS and DAB cables?

HELP!!!
Advice please Skoda family!

Im planning on installing an android head unit, to replace the standard factory fitted 'Swing' Unit.
The Unit will have a GPS and DAB Radio antenna.

The DAB antenna sticks to the inside of the windscreen (far left).
The GPS i was planning to have either resting on the dash area near the Windscreen, or there about.
How can i get the DAB and GPS cables to the back of the head unit, without drilling holes?
Do i need to remove the glovebox completely and feed the cables behand the glovebox?

Can i access the back of the Stereo compartment if i remove the glovebox?

What is the best way to approach this?