Just sharing a little project I did recently adding some footwell lighting to my 2017 Ram 1500 express, quad cab. The wiring connectors are in place under the dash and you can use a ~$60 LED mopar kit, or a ~$20 incandescent kit. I got mine off eBay for under $20 shipped. Several other FCA products use the same part numbers. You do have to feel around a bit to find the harness for the passenger side. I wound up pulling off the side kick panel when I didn't have to. There is a teardrop shaped recess on the passenger side for one of these lights and a mounting hole on the driver's side. I used plastic push plugs for mounting and poked holes in the pass side underdash cover with an awl. 10min job.