[nova1313]

the 80 dollar one should work. Usually you can just match up the wires and connect with some butt splices and you should be good to go. Not much knowledge needed. I had bought a front sensor for my spyder gs and the colors didn't match up right but when you read the eclipse manual (if you need the pages let me know) and read the descriptions that came with teh sensor for the wires it made sense and worked fine.

Hope it works out well for you. No need to get OEM on anything small like that really. The replacements are designed to take place of the OEM stuff and funciton the same. So you can usualy just buy parts from autozone for stuff like that.