Just installed a Jensen VM9410 in my 03 Tahoe with bose system and no Onstar. Put interface on and everything works fine except when I play a DVD or CD no sound comes from my speakers. However when I switch it to the radio static comes out( Haven't bought adapter for antenna yet). Any ideas to what I might have done wrong.
Yes there are factory amps with a BOSE system. Robert it sounds to me like you are using the power antenna output from the Jensen to trigger the amps. Most systems are designed to turn the power antenna off when listening to anything other than the radio. There should be an amplifier turn-on lead on that Jensen harness. Connect that one in place of the antenna lead and you should be good.