sloaccord

hey guys.
i dont know if any of you remember my bumper-mounted camera videos, but the camera took a crap. but now i've got a new one, and i think it's all for the better, too- better camera, easier to mount, etc- but i'm still stuck on my original problem- sound.
the only way to record sound is to run an rca -cabled mike into the engine bay. but no one makes an rca mike. i've tried rca to regular plug converters, but that didnt work because the mike has to be self- powered. [i.e., the only solution that i've found that actually works is to run a regular mike into my laptop, then out to a rca plug converter which goes to the camera. now, who really wants their laptop in their car when they're autocrossing?]
any ideas guys?