My 2010 corolla sir auxiliary port is not working

remove door panel most likely linkage probler m

Does the ignition key need to be turned on for it to work?

This has been answered.

Download Link:
http://www.repair-guidebook.com/2009-2010-toyota-corolla-service-repair-manual-pdf-download

I need to replace the wiring harness for auxiliary port, we're do I find it

This is just a chat room

No one works at Fix Ya

No one has to answer any questions, so I do
not know who has responded around the world

You have a toyota shown here, so don't be too hard
on those offering a suggestion

Check for the antennae connection. If you have serviced the radio recently, the antennae could have been knocked loose? The outside antennae could be damaged? These connections complete the circuit. Hope this helps.

It will better that you think of the cost involved in the process of changing then updating the engine to be registered . There are many engines that can suit but ideally the toyota new range for the Corolla model will be good.
I would suggest that you think of changing the car to a newer model that to invest in an old car which is almost 20 years old. You must take into account that newer issues on the suspension, brakes , steering will still remain and keep costing you more money.

There are 2 fuses in the rear fuse box. The cig fuse and the Aux/pwr 2 fuse.

Check what you are plugging in the outlets. Phone chargers are a first source of blown fuses.