the stock speakers on my accord blew out, so I bought some 6.5 inch JL Audio TR650-CXi to replace them. I got the door off, but i ran into a problem, the speaker enclosure isn't deep enough, and if it was, the mounting holes seem slightly (1cm) off on one side. Where could i get another speaker enclosure?

PS
I know this is a rather dumb question, so please bare with me