Firewall opening

[mntgab]

I did an A/C delete this year and there is a 3" hole under the new heater box that I don't remember removing anything from. Does anyone know what should be there. Here is a photo of a bare firewall (not mine) that shows the hole under the heater box opening.

 

[drogg1]

I believe that's where the computer harness goes through? Or maybe part of the AC?

 

[mntgab]

Oh yeah, I pulled the computer out several years ago. Thanks for the quick reply.

 

[marcar1993]

Yes, that is the computer harness hole.