We have decided to sell these illuminated discs as an add on for your existing cup holders. All you have to do is drill a 1/4″ hole in the bottom of your existing cup holder and pass the wires through.  It’s a simple 2 wire installation consisting of power and ground.  You can switch it on with your headlights or an aux. switch.
NOTE: Cup Holders Sold SeparatelyÂ
These drop in discs fit the large 43021 stainless cup holders.
https://www.streetmusclemag.com/news/more-led-innovation-from-watsons-streetworks/