Jay, check around the passenger side console near the outer wall, and also the outer wall just in front of the door but at floor level under the dash. If it is damp there, then you are getting water down the wall. Check the seam between the front cap and the rest of the body, especially where it curves over where it meets the roof.
If you find nothing that looks out of place and no cracked or missing caulk, then it may be where the awning attaches to the gutter area. If you have a folding arm type awning, check where it is mounted at the gutter. On my coach both the front and rear arm mounts looked OK until I removed them. Then it was obvious there was a crack in the caulk behind the mount that could not be seen without first removing the mount. Fixed the problem for me.
2001 Monaco Diplomat 40' PDQ - 08 Honda CR-V