I'm looking at an ONYX + Car kit satellite radio to install in our 5-er. The concept is pretty straight forward. Power source is a power adapter socket (aka cigarette lighter type socket), Aux in from the unit to the existing stereo system, select an FM radio station not in use locally, synchronize the two and voila, satellite radio should feed over the stereo (after subscribing of course). The alternative would be a "Fully Portable" unit that looks a bit like the old transistor radios we used to have in the '60s but I'm afraid the sound will be marginal.
Has anyone tried this, and if so, how did it turn out? What would you do differently if you had to do it all over again.
Many thanks