I removed the LH rear door panel of my 94 camry. It comes of entirely but there is a cable attached to the door panel and to something in the door that doesn't let the door panel come off entirely. How should i take the cable off ?

What does the cable attach to? Is it for the door handle? Let me know what it's attached to, or where it attaches on the panel.

I think it is attached to the power lock in the door panel.. There looks like a plug put in the socket for the power locks. But i am not sure how to remove it. Thanks !!

I think the lock assembly can be popped out of the door panel to avoid having to remove the cable. What you should do is get a flat head screwdriver and pry gently at all the edges until it pops out.