Hello everyone. I'm glad I found this site before I purchased this unit. It seems as though there are some negative things about it that I read on the amazon.com reviews. But since being here it seems as though you guys seem to really like this HU. Well, I would like to know if there is anything I need to know before I start installing it this weekend. It seems as though I am getting conflicting thoughts on what to update and what not to. I would like to bypass the parking brake and I think I can handle that. I would like to apply the caution nag hack, too. Should I see if there is an