I did the Charger master window switch mod tonite at work (nice thing about 3rd shift). Very easy and something that makes life easier when using the windows at nite. Also told someone at work that has a Caliber and he was thinking of doin it (I like giving the modding bug to people).
U can get them new from online dealers. Master switch is about $35 & others are about $10. I got lucky and found mine on eBay for only $17 shipped. I found some for about $30 - 40. Part numbers are 04602780AA for the driver's master switch & 04602787AA for the other door (all three door take the same switch).
If you do a Google search "caliber window switch mod" & click (I think) 1st link, should be a post from calibersrt4 forum. It shows part numbers, pic and DIY which is the same for the compass.