Yeah so the final question for me on this topic is what what dci do i need for the deh-p6900ub head unit. I appologize for all the polluting i have caused but i have figured out exactly how im doin my audio so thanks guys but this is the last piece of info i need. Thank in advance to your help. Oh BTW id like to stay wired but if its nessesary for the IR Model i guess i can manage.