Which thing do you want to connect to your HONDA car? Which type or model of car, which year?
Your questions is that unspecific, that you easier could have asked "Where can i buy connectors?" or "Where can I buy shoes?".
Whats about this question, has exact the same wording and quality, I only changed _two_ words:
".... Where can I buy HP connectors? Are they industry standard (can buy in any store)? I'm about to find my project but without using connectors, it would be a mess connecting it to my computer. I live in the US. ..."