What brand speakers did you get? I love Polk myself, but the blasted rubber surrounds are damaged thanks to the audio shop installers. I didn't know enough about what I was doing back when I had it installed to do the speakers myself. I should have done so. They used a type of self-tapping screw with a flat, washer-type surface that ate into the surround and over time tore into it, splitting it. The speakers will rattle sometimes, but still work pretty well. I just need to get some type of repair kit for them one of these days.
12mpg at 85-90mph in a 5.9 doesn't sound bad at all. I'd get less than 12mpg on a calm day on flat terrain going that speed with the 4.0.
I bought some Audio Research's. no idea if they are any good, i bought them last minute since i was driving up to red deer today, i thought i'd just stick em in.
Sucks about your speakers, but at least you didn't go to best buy, and them duct taping them in because they aren't the right size. They did that to my other jeep with some JL's
depending where you speaker is damaged, black RTV works really well to repair them
Sounds kinda dumb, but theses jeeps don't have converter box thingys for the steering wheel controls that i know of, and i hate the look of after market decks unless its like a double din touch screen type. most of them just look ricey. but i am pretty happy for now.
i am pretty impressed with how well the jeep drove at speed. i could do 90 all day very comfortably. steering was easy no white knuckling. even with 70 MPH wind gusts it was very composed. and the power from the little V8 is incredible.
i don't think my ford would even do 12mpg at those speeds, plus it would only have 10 more MPH before it hits the governor, needs a chip bad. but i am happy with it, next time, i am going to put the 91 tune on, since every last FT/LBS and BHP counts