Not sure if you own an ES (even thou your avatar = MrEs) & (no interior map lights) or higher model.
The Pic you provided, shows a cut out for the Sunglasses Holder ... Not Interior Map Lights ...

Please Clarify ....
If its the Map Lights Only that your fitting ....
Then the Distance "as per your Red Dots" to the centre of the Light Assy as shown in your Pic = 150mm / 15cm / 6" ... which ever your rule is.
Sam ....
