Here is the fuse block. The bottom left post is positive, and the bottom right is for jumping the car, as the battery is in the back.
The fuse block is right behind the PCM, so the positive would probably be better coming from the fuse block post.
Food for thought after this, is spray injection point.
Choice 1
http://shop.zzperformance.com/store/...cer-Plate.aspx
Choice 2
http://shop.zzperformance.com/store/...cer-Plate.aspx
I can get #1 for about $30 from a different vendor, and #2 is used for $50 or less. Been told that the meth doesn't affect the coating on the rotors.