its under your dash. remove the kicpanel under the steeringwheel. right behind the speedo (you have to go up under the dash, though).. the relay is held on by a clip and is pointing upward, and is a little hard to see. get a bright flashlight to find it. i did the job in less than an hour and i took my time.

be sure and wear protective eyewear as there is tons of crap that falls down from there when you start fishing around.

i got a relay for about $30 from mbz.org guys.