Here's a few from me that could be useful to add on here.

Injen CAI DIY for CL9 (this one can replace with the link you have existing)
http://www.ozhonda.com/forum/showthr...L9-Accord-Euro

CL9 ECU PINOUT DIAGRAM
http://www.ozhonda.com/forum/showthr...Pinout-Diagram

Iphone/AUX Interface Cable for CL9 Factory Headunit - Review & DIY Install
http://www.ozhonda.com/forum/showthr...Plug-amp-Play)