hello just joined so not sure i'm in the right forum, anyway here goes, i have a 98 300tdi disco and the speakers are absolutely rubbish! 4 inch door speakers, tinny as you like. i'm looking for a way to get a decent depth of sound without having to resort to wasting space by putting amps and boom boxes in the boot. for a start there are always two dogs in the boot so that's out of the question, also half the time the seats are down and the floor is covered in wood and chainsaws so anything like that wouldn't last five minutes! i've been looking at under seat sub woofers but am not too sure? i don't want to be driving down the road rattling windows, just need a decent noise, any ideas? cheers!