I also have an H-D XM module mounted inside the faring that works with the HD radio. The antenna is also mounted inside the faring and works great. I rarely listen to AM/FM. I've never had a CD in the HU.

 

For satellite radio mounts that are really simple but look classy (and are made in the USA, BTW), check out http://www.leadermotorcycle.com/satellite-radio-mounts/ Also easy to just move the radio from motorcycle to car, etc.

 

The problem with a Smartphone App is the amount of data plan you have. If you don't have an unlimited plan (most don't offer them any more) you may run out of data and be required to pay for the extra data used.
And the signal may be great around tow, but if you are traveling cross country, you may loose signal, or move into "Roaming" and get an extra charge.

I love my SIRIUS because I never have the signal fade on trips. And I can move it around to any vehicle or around the house.
The second photo is the antenna on top of the radio.

 

I have the HD XM module, it works great and in the winter you can suspend the service on it. Only thing I did different was I used reusable 2 sided tape on the antenna and put it on top of my tweeter pod because it would lose the signal behind trees and hills.

 

Starmate Replay 5 that I swap btw house, car, truck and bike. Had now since 2007. On second replay unit as power jack came loose on 1st one. Use an old visor clip from an old radar detector attached to the plastic mounting adapter that came with the car/home kits for the Starmate. I then clip to my windshield bag and it easily then can be removed and stored out of site. Went recently with the Sirius FM adapter kit, but prior to that velcroed the antenna to the windshield bag. Hardwired the power from a source under the bat wing.

 

I have been using my old XM Sportster for several years and just recently hard mounted it to my inner fairing. I think it looks good.

 

I have a Sirius, and use the eCaddy Deluxe. Very classy looking and very simple. You can even move the radio from car to motorcycle. Works with almost all satellite radio brands/models: http://www.leadermotorcycle.com/satellite-radio-mounts/

 

I have an XMP3i mounted to the handlebars.
All wires run down the handlebars and into the fairing.
Antenna is mounted onto the radio inside the fairing.
I just ran the audio cable down the handlebars, through the fairing and into the AUX port.