Keep in mind that any wire extensions you add will increase resistance in the blinker circuit, which may affect the blink speed.
feloniousmonk wrote:It should be a US DOT standard but the American government is slow and dumb.
I'm extremely glad it's not USDOT standard. I HATE side marker lights. I mean no offense to anyone who has a different opinion, but I think they look terrible. The day I buy a car with side repeaters will be the same day I buy a bucket of bondo and some touch-up paint.
They don't add anything of value to average passenger cars safety-wise. Yeah, they're nice on semis and busses, but with USDOT requirements on side reflectors and tail/headlight signal placement, you're never out of view of the factory corner flashers anyway. There's no reason to mandate extraneous mirror or fender lights on passenger cars.