just so you know , you can buy the black one from the 8L which are around 20 quid , and remove the parts needed to fit the 8p .
the black cover with the map lights in fits the newer 8p one . the switches just unclip and fit in the 8p base 2 metal clips for the map light bulbs are removed from the 8L and push back into the 8p version . the only thing i had to do which i had forgot about is , only some 8L lights have only 1 microphone slot in the centre ,where as the 8p has 3. so i had to drill a series of small 1.5 mm holes in the correct place , also drilled the 2 red ambient light holes as well to fit 2 red leds.
total cost £16.50 for 8L light
£0.47 for 2 led and resistors .
1 lego block to hold leds in correct place , and a bit of patience for an hour swapping bits over .
the rear light also fits but the plug is different , need to source one of these and re wire rear light for map lights with centre switch.