Ultimate iPod adaptor and 10Min install

[carlosb2005]

Hi guys I am really in need of help about this topic....when I got my Hummer I order it with the Nav System but with out XM ( I guess this means that the xm modulator is not there...correct me if I am wrong). I am dying to listen to my IPOD through the Hummers premium sound system. I know the nucleus adapter works with out the XM and I should just get a different harness with it. My concern is that since i need to order a different part, is the installation more difficult?? will I have to cut wires and do stuff like that??. Has anyone installed the adapter that didnt have XM???...My hummer is a lease so obviously i have to give it back the way they have it to me and if i have to cut wires then i guess ill have to use an fm modulator which i don't want...i want the best possible sound that I can get....can anyone give me any suggestions/tips?.....please??? thanks