red you can arange 4 diodes in a way that the polarity wont mater. it will keep you from cutting your harness especially if you put this on the pcb before the LEDs

when i re-did my brake system i simply rebuilt my calipers with the oreily's rebuild kit. the ones from oreilys will be about 80% cheaper then toyota and the availability was much better. I used 88rotors slotted and cross drilled rotors. They came in a kit with front and rear rotors and pads. as for...