yeah thats when things get tricky, you should only need a power and ground to operate your new seats rather than hacking in the factory wiring. ive never needed power seats i dont let anyone else drive my cars so once i find the sweet spot thats where it stays. good luck on your venture! oh one more thing, you might be able to source some mounts out of a wrecked car you could modify, i see cars getting parted out on ebay all the time mayb one of these folks would be able to get you some, just a thought.