So, do you really want help here, or do you just want to scatter random posts around that don't contain nearly enough info for anyone to be able to help?
If you do want help, at least answer the following questions in this thread.
What year is your LS? If it is an 03, then give the production date or a picture of the radio connector.
Are the front door speakers the problem, or is it the front console speakers?
Does your LS have factory subs?
What is the actual part number of the Metra harness you used?
Is the Pioneer new, used, or refurbished?