I notice the new cascadias & some peterbilt 386s have extra marker lights/turn signals on the lower rear wings of the sleepers. Great safety addition due to the normal turn signal dead zone from regular fender to trailer.
They use the exact same trucklite led bulb that at least factory cascadias use on fender lights. Wondering if Walmart shops install these or does freightliner do it as an option?
Has anyone looked to where they plug into, factory harness connection or an after production run spliced somewhere?