Hey Lowlander, yes, the lighting was so poor in these older Highlanders. When I opened the doors, the lighting was very dim at night, couldn't see a thing! I got the switch off of Amazon. I'm not that knowledgeable in car electrical work, so I got a friend of mine to do all the work. I can find out how he did it though. I put LED light strips under the driver and passenger dash and also under the center console. He wired it when you open the door they all come on then go off with rest of interior lights. The LED light switch lets the ambient light strips come on while driving. Also, he put in a switch in the upper console to give me a sort of map light too. I did design a USB plate to replace the rear ash tray. I did have to learn a CAD program to design it. It took me about 3 months to learn it. I'm having trouble posting more pics, I'll send them later