Ok i am sure you have all had tons of posts like this but here it goes. First off i am a first time T4R owner. I recently traded in my 2002 Honda accord for this bad boy and i love it. Here are my questions. I have the stock head unit that came with the SUV. It is not the JBL edition and no navigation. What are the chances that i have AUX inputs in the back for RCA wire to reach an amp? I highly doubt it but i dont want to go through all the trouble to remove the head unit for no reason. Second The stock speakers have some really nice bass to them but dont have much highs. I wanted to replace the front door tweeters to help solve that but leave the bottom door speakers in place. Is removing the front door panel easy? Eventualy i plan on adding at least one 10 inch sub or one 12 inch sub in the trunk but i am trying to find the easiest way to do it. Sorry if my typing is confusing i am trying to write everything out.