Is the bulb that goes into the lower strip of the tail lights the reverse light bulb? I bought the LED tails but dont have that one bulb I need for the bottom strip.. someone please englighten me.. also if you could tell me what LED or POLARG replacement I could get instead thatd be great.. thanks..!

 

I don't have a GS but I've seen those LED tail lights you're talking about and it does look like the reverse is on the bottom strip closest to the license plate. I have LED reverse lights, too. Bought them on www.v-leds.com but used the 194 size instead of the 921. Have some pix if you wanna see how they look like.