I have decided to make up a sequential tail light setup myself. Basically all you need is two 12v on delay relay modules per side. I ordered 2 of them to play with. If it works I will order two more for the other side. The tail lights will be all by themselves and do not need to go through the module. The inside taillights are powered by the solid state flasher as always. The center tail lights will be powered by the first on delay relay module. It will be powered by the same wire that goes to the inside tail light. The outside tail lights will be powered by the 2nd on delay relay module. This one will get its power from the output of the first relay module which is the same wire that goes to the center light. I will have to play with the on delay timers to get it just right. These modules run around $9 each on Amazon and other places. They do say automotive. Also if I understand this correctly it appears that when the brakes are applied you will get one sequential event and then the brake lights will stay on until the brake pedal is released.