Irvine-based Autobytel has inked a deal with Synacor, a provider of services to broadband cable providers, to offer its vehicle research and buying via broadband access services. Autobytel's auto channel will be features on the consumer portals of 17 broadband providers who use Synacor for their online services. Synacor's customers include Adelphia.net, and other ISPs who use Synacor for single sign-on and integrated billing of subscription services.