Which is the correct + post up under the hood for using a trickle charger? I believe it's in the right side box behind the strut, but I don't know which exact one.

 

There is a picture in the FAQ sticky above. There are power connections on both sides.

 

It should be covered by a rubber cap

 

Ah, yes. I looked closely at the schematic pics and the best path back to the battery seems like it would be on the right side of the car (same side as battery and hi load fuse block), but the drawing suggests the opposite. Of course, that drawing doesn't quite show the junction that splits the + cables off to each side under the hood.

I guess the ideal post would be the one that hits the starter. Anyway, I'm just giving it a 1.5 amp trickle charge to keep the battery strong. I hooked up to the left side because it is where I can easily look out to the car and see the lights on the charger.