Navigation radio and air conditioning

Did you check to see if you have a blown fuse ?

yes

i ejected gps cd but it cd did not go back in the box like it was suppose to

trying to locate the fuse

its a 2001 lexus gs430

how do I inspect the wiring on my 2004 Lexus ls430? when riding along the radio erratically comes on and off. sometimes just makes clocklike noise as though the wiring is braking contact, making a little noise through the radio. thank you, Bob Beaty