Hey guys so I'm no petrolhead or car genie

but I do like nice looking cars and I love my mazda however I'm looking to make a few changes

first thing I wanna do is have the interior light up red when the doors are open I have already tried this but the lights I used were a pile of rubbish dose anyone no the product I should use to get this effect ? And where I can find it? Also the gaps in the front bumper would like to stick a set of lights there however have no clue what to put there any advice help would be much appreciated