Has anybody done it? I thought it would be original and not that bad-looking. Doesn't really serve a huge purpose, but I imagine it looks better than the current OEM setup. Thoughts? Anyone that's done it feel free to post pics.
Red would be illegal in the front, LED would not. Red is legal in the back of course since many vehicles have a single red brake/turn signal indicator.
However, you need a special resistor control box to get an LED lamp to function as a turn signal.
red led front turn signal would look kinda weird, lol. but for rears...you wont be able to tell anyways, but u'll get a fast blink all the time, if you're into that sort of thing.
If you're going to install an LED bulb for your turn signal - in place of your standard incandescent bulb - like hillstones was eluding to, you need to install/splice a load resistor (like the pic below) in each corner that you use an LED bulb...or else, like paperboy42190 said, you'll get the "hyperflash" when you use your turn signal. Normally, if you purchase LED bulbs from a reputable seller (like the ones advertised here on DA), you can also purchase these load resistors with the bulbs.
Is this load resistor just for impedance matching? Does anyone know the resistance of OEM taillights? If it's just some series resistors, I'd rather make one. = )
LED bulbs draw less current; with cars now-a-days, (you probably already know this) the hyperflash is to inform you that one of your bulbs is burnt out. Both front and back turn signals (per side) are on the same circuit; so the hyperflash will happen on the side the bulb is burnt out (regardless if either front or back is burnt out) or for your application, where you replaced the standard bulb with the LED one. The load resistor just simulates the current an incandescent bulbs draws. Hope this helps.