Forms :: Click Record In Listbox And Combobox Jumps To Same Record?

I have been looking for days on the net for my listbox problem. It is there and found a few, even on this forum. but when i try the solutions mentioned i am in a total loss and do not know what to change to make it work for me.

I have a form named A/B Retriever with a record source qry input AB Bins Than i have a unbound combobox with row source qry input AB Bins. This populates 8 textboxes with B through I carton boxes, stored in a bin. The user selects a Bin location from the combobox and can put a "x" in a textbox to illustrate that the box is empty. This works perfect.

Underneath the input bin and box part i have 8 listboxes that shows a query that has counted the empty boxes with the corresponding bin location. this also works. but the question from users where, If i click on a, lets say empty B-box at Bin location 12A20, they want the combobox automatically focus on the combobox with the corresponding Bin location. This is a quick way for them to delete a empty box (remove the X).