The 9V adapter by my passenger seat is not working. The one inside arm rest is working...

What Fuse did I need?

I was using a car pump and it just stopped working when I started the car.

The last time this happened both 9V adapters were not working.

it's a 15 amp mini fuse under the drivers side knee panel
if you have a larger air pump...they will blow the fuse. I keep spares on hand for this alone. Happens all of the time. I find giving the pump a break in between tire's saves the fuse from blowing.

THANKS! I actually keep the engine running because I had my battery die once. It was near the end of it's 3-4 year life.

You're welcome.
I always run the motor when using the compressor. I ran the battery down once too.....it too was older.