My friend just bought a new '04 & asked me where the block heater was because he couldnt find the plug. I looked at his engine & could not find the plug & looked where mine is on the right side of engine almost half way back. There was no block heater. Are the newer engines in the same place? I saw what appeared to be a plug at that location. Is it an option? Mine came with the purchase so I thought they all came with them installed. Is the plug that I'm looking at the place where the block heater should be?