so heres what i know. i have had to add freon for the past month or so. i went to put freon in it yesterday and the gauge went into the red and said i had mechanical issues. the fan blows just fine. i changed the compressor relay can you believe an 18$ relay from Advance Auto compared to 95$ from the dealer. anyway had to go to the dealer as none of the relays were marked. that didnt work..so am i stuck having to replace the compressor?? or could there be another issue? thanks in advance.

 

could someone possible show me an image of where the a/c relay(not fuse) is located under the hood.