TO add to the original post:
Dometic will want about 100 bucks for a strip of 3528's. I put water proof 5050's on my awning. The 5050 LED strip is a bit wider than the 3528 LED strip and the 3M tape will eventually give up. I put a thin bead of silicone down the awning trough for the LED's and they have been up for a little over a year and a half...plus I get pretty colors..
Here is a 3528 strip on Amazon...the 3528's will fit down into the awning trough, but I was not able to find 3528's that changed color....