My back right BOSE speaker blew for my 3.5 RL. For the most part, I like the stock system, but I'm not going to keep buying the same BOSE speaker if it's going to keep blowing out. Any recommendations on a good speaker(s) to replace my blown one with and possible upgrades, and where can I get them? Should I bother putting in tweeters? (Don't really want to throw a box in the trunk or change radio.)