Difference between 3457AK and 3457NA bulbs???

[DarkAquarius]

Hello everyone. I own a 2010 Sentra SR (2.0) and I need to replace the front turn signal bulb in the car. The Service manual says to use a 3457AK bulb as the replacement. I purchased 3457NA at the local parts store, and when I installed them it doesn't work. I overheard someone talking about how different cars have different grounds on the sockets. I did some quick research and found that the 3457's have two grounding configurations, in general. One has the grounds on the same side (right and left of another) and the other has the grounds faceing each other (infront of another).

OK, so here is my boring question. On the 2010 Sentra 2.0 SR, where are the grounding connectors located in the socket? On the same side or in-front-of?
I understand that it's easier to buy the correct set, but I want to understand the problem and know the right answer instead of being abscent minded. lol/

I really appreciate your feedback.
Happy 2011!