Welcome Solar257, and thanks for the great input.
I haven't had the pleasure of listening to HD radio yet, so I'm intrigued to say the least.
I find myself often times thinking that XM Satellite is HD when in fact it's not.
I'd be more interested in a hidden HD adapter, be it in the Alpine controller or via USB or AUX ports.
Anyway, I have to do some reading up on HD radio so if I stumble onto something that may add some value to this thread (besides this useless rambling, LOL) I will surely share it with you all!

I haven't had the pleasure of listening to HD radio yet, so I'm intrigued to say the least.
I find myself often times thinking that XM Satellite is HD when in fact it's not.
I'd be more interested in a hidden HD adapter, be it in the Alpine controller or via USB or AUX ports.
Anyway, I have to do some reading up on HD radio so if I stumble onto something that may add some value to this thread (besides this useless rambling, LOL) I will surely share it with you all!