hey where can i run power through the fire wall in a tr magna??

The Grommit is really going to be your best option, its usually behind the glove box.

behind the glove box area OR run it out therough the quarter panel on the drivers side and op over the inner wheel gaurd, ziptying it as high up as possible to the existing wiring, there the is a massive grommit that enters the foot well just above the incabin fuse box. easypeasy