I remember a mate years back, he had a good friend working in car audio ..So he decides to borrow 10k and deck his boot out with amps and subs the works cause he could get a good price and free install..
It was crazy, about 8k worth of goodies, 5 amps laid into custom boot panels, big subbox, more subs in the doors, speakers everywhere, neon lights the whole shebang......
Anyway before doing this we told him to fix the little bits of rust around his back window (old falcon) and make sure the boot didnt leak..
he didnt listen, his amps and sub box got wet ..it was mostly ruined and he had no money left to fix it just a huge debt and a rusty old falcon with half a cool stereo..