I have the 2003 G35 coupe, the radio is not coming on, took it to audio shop, when they wiggled the ignition switch it came on but now its off again, what would I need to do to correct my problem?,,,,note: it is a aftermarket radio and worked fine for 6 months.

 

That has got to be the most ghetto troubleshooting and solution. Wiggle wire...OOH IT WORKS...leave it alone and send the customer home. LULZ...is that troubleshooting these days. You harness is probably loose or they used a crappy crimp on it. You will need to pull out the radio and inspect the harness and possibly rewire. You could also have a short in the back and causing this. Wiggling the wire will only solve it till the next speedbump/pothole