A few questions from a buyer to all that have done it.

[HummerNewbie]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Vandakeg:
How about adding XM to the base radio? Is there something I can buy? </div></BLOCKQUOTE>

Don't recall for sure but I believe that all H3 stereos are XM compatible. If this is the case, you can get the Terk GM Direct Connect XM. I got mine through Amazon last week for about $165 shipped. Very easy to hook up and works great on my Monsoon system. I was somewhat pissed mine didn't have the XM module at first but in the long run I saved about $200