I expect this question has been addressed before but I was not able to locate one to answer my 3 questions. 1. Where is the best place under the front fairing to mount the xm antenna? Can it be placed on top of the amp or radio? 2. In order to get the Garmin and XM thru the Ultra radio and headset I must run a single male end cable from the Garmin audio out to the radio's Aux port. Is this correct? The use of 90 degree ends make a lot of sense from a previous thread reply. 3. What function is used to allow the radio to work with the Garmin and XM? This is a new ride for me and would appreciate any help in getting the Garmin and XM set up. I certainly would rather be riding than messing with wires and fairing. *** Harley did come out with a new inter fairing Road Tech Zumo mount that will fit your Garmin Zumo. It really cleans things up and sits at a great level for you and your rider to see.