Ok, slight update. If the noise sounds like the video above it's possible it could be from inside the car. For a long time i was questioning whether it was the lower arm or something to do with the wheel.
For now, some things i have been playing around with:
1 - The glovebox, mine was rattling noticeably and when i opened and closed the glovebox i could hear it groaning/creaking at the hinges. Spray some silicone lubricant around the glovebox edges, including the catch for the door itself, unscrew the catch, move it slightly and screw it back in. Did this last week and it seems to have cured most of the glovebox noise for now, but I could still hear the chirping noise.
2 - I also sprayed silicone lubricant around any plastic/rubber bits attached to the door/pillar which did not exactly help but was worth a try.
3 (What seems to have actually done something) - I began tapping on the hard plastic surfaces around the passenger side (mouldings around the seat, dash board, window, glovebox, etc..) and found that the lever under the passenger seat (the one you pull to adjust the position of the seat forwards/backwards) would made a similar kind of squeaky noise when you tapped the plastic moulding around the passenger seat.
At that point i also sprayed the seat adjustment lever itself both on top and beneath, and the metal / plastic parts under the seat then moved the seat forwards and backwards. Right now i have not heard the noise more than a couple times each journey (i regularly take the same roads every day) so i'm still working on it.
If you've got a similar noise like in the video link above, be sure to check around / under the seat including any joints, mounts and any levers used to adjust the seat position and spray lubricant on the suspected parts.
I will report back soon to see if it's really helped or not in the near future. Good luck.