Interior Light Change

I have a 2016 Skoda Superb with interior lights that are Halogen.  I would like to change them to LED.  

My questions would be:

1.  Any instructions on how to change the lights reading lights above the back seats?  

2.  If I buy X-treme Ultinon LED-T10 (=W5W) 6000K from Philips, will they dim when I use the dimming function for the interior floor lights?  

3.  How to change the reading lights above the driver and passenger

The boot lights and under the driver and passenger seats seem pretty straight forward, but if anyone wants to chime in, please let me know.  

Thanks for the advice.