... do people not like me or something??? always takes a week to get an answer.
It would be illegal because blinkers in the rear MUST be amber or red, and reverse lights MUST be white (clear).Why would it be illegal? Basically, he wants to have independant rear amber turn signals in the back of his car, its not illegal, as many cars have this, but the one tricky part, is that he wants one lamp to serve the purpose of 2 lamps, Reverse & Turn, which may be tricky.
I think, the only way he can achieve this right now, would be to use LED's and use Seperate LED's for reverse and Turn and cram them into the reverse housing.