IR remote question
I have a ISB7500 box. I recently mounted my TV and ran all the wiring behind the wall into a cabinet. The box is located in the cabinet and i leave the door open to use the IR remote. I wanted to purchase the RF remote but not for $60. I also heard the battery life on those are terrible. Can I use an IR extender/receiver? There isn't a 3.5mm jack so I'm not sure how that would work. Any help would be appreciated. Thank you.