2006 XLT Explorer... I'm not looking to kill my ears here...just looking for a decent, strong sounding double din system that has BT and not going to break the bank. I wouldn't mind a touchscreen, but it's not necessary. I'm also going to swap out speakers, so if anyone can tell me the size speakers that are in the doors, I'd appreciate it very much. What are some of your suggestions on brand and accessories for it? Thanks.