inputs.text: buyer beware - first good purchased unit week ago amazoncom installation easy gmc truck plug play everything works advertised using days no serious problems looking simple replacement works unit younow bad first user guide came unit not correct one search internet found user guide 8000ii flyaudio corp web site radio came plain white box no markings not even model serial number no warranty card instructions register no contact information phone otherwise box within owners manual went simplesoft web site warranty information no instructions use needed no information anywhere update maps forum owners appears abandon no activity since sep 2012 no response posts made tried email address listed reviews get reply provide limited assistance wayso looking good buy willing take risk \\as is\\ radio replacement one keeping mine says little hope help breaks updates gps