is there a way for camera raw to see and use the changes made by DPP
It is essential to understand, that DPP did not make any changes to the image. It recorded the adjustments, just like ACR is doing; however, the recording made by DPP is not only in a proprietory format, like ACR's changes are, but undocumented as well (though I doubt that Adobe would recognize them even if their format were documented).
In short: forget about it.
You have confirmed my suspicion, I am aware that any changes made by DPP or most other software to raw files is only recording changes and not actually applying the changes until it is converted and saved to another format. Was hoping that ACR would be able to read the changes.
The reason I wanted this is I find that DPP does a better job removing noise from high ISO images then ACR, but I prefer the rest of the editing features of ACR, so what I hoped to do was to use DPP to remove noise and finish editing in ACR.
Was just a though, thanks for the help.
As you have found, Canon's DPP does its thing, and Adobe's CR does its thing, without knowing about the other. This is as good as it's going to be. The "settings" in ACR and the "settings" in DPP are specific to their own respective RAW engines and even if DPP looked in ACR's XMP or ACR looked at DPPs "recipe" files, they wouldn't know how to interpret them.