I have a speaker that was intermittent in my Lucerne and now it's out in one of my doors. I really don't want to spend the money on a new head unit so I've been looking at Crutchfeild for some new speakers but researching other forums people are saying it won't sound any better and maybe worse without a new head unit. By the time you spend the extra money to retain the steering wheel controls and chimes it gets a little spendy. So I would like to hear from anyone that has replaced speakers and kept the factory head unit. I think I've narrowed it down to some Infinity Reference speakers, 6532ix for the doors and 9632ix for the rear. Crutchfeild mentioned they are designer for factory amps with little power.