that is highly likely that you did that, but lets hope you did not. what i would do is unhook ALL your wiring and make sure everything in the car works. check ALL fuses if you have not already, all of them. if you did hook the wires up wrong, this is where you would know.

then if you did unhook everything and it still does the same thing, then you need to goto that rubber grommet and check the cars wiring. make sure you disconnect the battery when checking the wires, i have seen some strange things happen when this is not done. checking the wiring should involve you getting a utility knife and cutting the electrical tape off. dont push it in the the loom, just make a surface cut, unwrap the tape and check the wiring. you may want to follow the loom into the car a little then cut there, then work your way to the grommet. you may need to tug a little to get some slack in the wiring. do you have a digital multimeter? if you don't, get your hands on one. this is the most basic tool anyone should have when doing electrical work.

btw, there is a grommet that is usually open on tegs(94-01)/civics(98+) that is on the passengers side. it leads to the back of the of the blower motor on the passenger side. you can't see it from the inside, but you can from the outside. its a little bit down from the battery. i don't know how big of a hole you need, but you can run 4 gauge wire through it. its kind of in a bad angle but the should be clearance, you may need to get a wire fisher or a coat hanger and shove it into the car from the engine bay. i know you needed the hole on the driver side, but incase you want to move it, that spots usually open.