Fiat / Alpha Romeo Phone Mount for GPS plug - Ark rework

This is a simple rework of the arm of the design of russiancatfood's ( https://www.thingiverse.com/thing:696271 ) that i like so much.

I don't like the original square arm so i decided to make a personal rework.
I've integrated a ball joint (the original ball joint scaled 5% more) on the top to plug in directly on the phone older with this type of joint.
The hole on the top have a double purpose:

• a pass for a allen key to tighten the screw on the dash plug
• a space where insert a M4x25 hex screew to reinforce the small arm that join the main body with the ball joint.

I've printed it vertically with supports.