if it works fine i wouldn't bother.. but if you really want to kill it, then here's what you do. (believe me, this will fry the ever loving shit out of it)
materials:
bucket of water
crappy old lamp cord
power strip with switch (no circuit breaker in it, just a switch)
long stick
soon-to-be-dead stereo
to do:
1. make sure power strip is off
2. strip ends of lamp cord about 1"
3. strip deck yellow/red/black wires about 1"
4. twist together yellow and red wires from deck and tie to one wire from lamp cord
5. tie black wire from deck to the other lamp cord wire
6. place deck into bucket
7. plug other end of lamp cord into power strip (make sure that bitch is off!!)
8. stand back and hit switch on power switch with the long stick
clean up procedure:
1. use stick to turn power strip back off (most likely won't have power anyways cuz this little trick should have tripped the circuit breaker in the house)
2. unplug lamp cord and pull deck out of water
3. go inside and reset circuit breaker
4. put everything away where it belongs and place deck out in sun for a few hours to dry out
once it's dried up, take it to circuit shitty and say "it just stopped working all of a sudden" and look puzzled
not only are you giving a 12v dc stereo 110v ac, but you're also sending that 110v thru-out the entire stereo by placing it in the water.. guaranteed to work
don't ask how i came up with this
(let's just say that this has been tested before.. HAHA)