Highlighting a Pinned items should show a pointer, similar to if "Always Visible" was enabled

[sarge945]

TL;DR the "Always Visible" arrows should appear when hovering over pinned items, to aid visibility.

What?
Currently, if I pin an object (such as a car), I can tick "Always Visible", which will make helpful arrows appear on the sides of the screen guiding me towards my car. Without the checkbox the arrows never appear. I propose that while hovering over the pin on the GUI (which normally shows a small window showing it's location), the arrows should also be visible as a helpful guide.

Why?
Sometimes the window showing the location can still be pretty ambiguous, or borderline useless (in the case of viewing things at night without nightvision, etc). Sometimes I need to scramble to my tank while being attacked, and having the arrows appear at the edges of the screen to show me which direction to go would be very helpful.