Audio Systems: Rewired stereo - now dome lights, radio and horn dont work, chevrolet suburban, interior dome

Question
Dear Sir - I am hoping you can help.  I have a 1979 Chevrolet Suburban.  Today I rewired the speaker system.  Whereas previously the radio had power but no sound, it now has no power.  The interior dome light and horn don't work either.  I assume I have done something wrong with the wiring.  Any ideas?  thanks, jameson

Answer
Hi Jameson!
Seems that some fuses had gone, check them with a multimeter or with a cheap tester. And about the radio on but no sound make sure that your car has no factory amp, if that is the case you need to connect the rewmote wire to the remote out of the radio (blue).