i'm going to be slowly upgrading my audio system in my CL-S and i was wondering if i get an aftermarket amp, do i need any special adapter or harness to hook it up to the stock HU? i'm going to be buying new speakers and an amp first so i'd like to hook them up to the stock HU until i get my kenwood ddx8017...

 

All the info you need is posted on the sticky at the begining of the Audio & Video section.