Take it from a novice who did it himself; IT CAN BE DONE!
soonercruiser is a 2006 NA Touring that was convereted into the
"Limited Edition" soonercruiser!
As a 2006 non-turbo, it came with that small lip spoiler, and I wanted something "special" for the
soonercruiser. I took off the lip spoiler, and replaced it with a custom, "two-of-a-kind" aftermarket spoiler (I believe from the SpoilerMart; around $70).
I personally cut open the spolier. molding an an LED light strip; and had a body shop do the painting, complete with O.U. Sooner logos.
**The only problem is...that the lip spoiler has a
center-line peg, that fits into a
small allignment hole in the body.
That hole is your problem. The other person who did the only other existing LED PT spoiler in existence, had the body shop weld the hole shut...and repainted the rear hatch.
**I wanted no part of that...so I simply covered the hole (about 1 inch square) with a Chrysler logo medallion, set in place with 3M tape. A simple soultion that hasn't shown a problem in 2 years - and, I might add, looks great! I saw "covering the hole" as another customization challenge!
I will go back and provide a photo gallery link in a few minutes.
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Here's a link to a close-up....
Image of Custom Spoiler - Photobucket - Video and Image Hosting