OK folks, I've spent to long trying to find a thread for info with no results so I'm throwing in the towel

. I need to change out the side marker
lights and I bought LEDS. I understand the polarity of them but the wiring design of them is a lot different than the original bases of my '06
Casita. The original
light bases had the wires wrapped around a metal base on both ends that the rivets went through, easy peasy. The new ones have a metal ring around one rivet hole with a white wire, neg lead and black + wire off the LED board going through the base just to the side and under the neg about 3/8ths " to one side so it doesn't use the other rivet hole as the original did for a connection. Not sure if this is a standard design or not. I can see how easily the originals were to wire up but how are these LEDs connected and riveted from the outside only? I can get at three of them from the inside if I have to but the one behind the shower............
Any pics would really be great