I have had an old XM2Go portable unit that I usually have in my shop hooked up to a small converter with separate speakers. I kept the automotive antenna hookup and just ordered a new car cradle on Ebay. I hooked it up to the aux-in on the Axerra and it seems to work. Not sure how the antenna that I placed on the dash will work. I may end up moving that around. Still nice to have and didn't have to buy another unit subscription.