[Land Yacht]

Any suggestions for how to adjust the low mounted mirrors on a 2000 vintage coach? Specifically, I can't see the passenger side as well as the drivers side of the coach. My passenger side mirror is very close in, thus, I can't see to judge the passenger side tires like I can on the drivers side. The problem is that I am afraid to move the arm to try a new angle. Thus, looking for tips :-)
Thanks Mike