I'm probably going to hold off on this for a little while, until I can actually have my name transferred over since technically my dad owns it, but it's in the "share with your sister" deal. But I keep the car clean(even in the winter which is a little tricky) and change the oil between 600-1000 miles before the usual 3,000 mi. The only things he pays for are the major things which so far has only been a coolant flush.
So until I can cough of $4700, and handle $600 every 6 months, it's dads car. :-/
But hey, soon enough I will replace the awful Delco radio with a touch screen and somehow tie into the stock speaker system. I'm thinking for that, I would run the high mid speakers off of another car amp I have in my closet(brother gave it be since he upgraded his audio system in his car after he bought it), and then just nab the audio directly off the mini, but also have an "aux" jack somewhere so if someone for some reason just wanted to plug their iPod or whatever in, they could. The Jimmy has a crossover and amp hidden under the center console, so I may figure something out and try and mod the second amp down there if there's room.
The other neat deal is when the rear seats fold flat and are in the normal position, there is space under the seat that looks to be big enough for a mac mini to sit. ;D So cargo area wouldn't be hindered in any way which is nice. That's what I'd probably do so that it would be hidden from criminal's and the like. You know, make it appear all stock, except for the touch screen.
I would like to get some sweet graphic EQ software so that I can make the most of the factory upscale speaker system.