Re: no sound from radio or turn signals
Yes, the turn signal "click" is nothing more than a sound track played thru the vehicle tweeter speakers in the a-pillar in order to "mimic" the sound made by old type turn signal "relays" that mechanically clicked.
I would guess you have an intermittent problem with the amplifier output signal to the speakers. One way to test this would be if it happens again, either plug in some headphones(or say PC speakers) to the rear audio console (or use wireless headphones if you have the RSE) and if you can hear sound in the headphones, but not in the speakers....then it is isolated in the outputs from the amplifier to the speakers or the amplifier itself (not sure how the sound system is wired in the Acadia).
His Lambda: '08 Acadia SLT-2 FWD, Deep Blue/Titanium, Sunroof, Towing, Step Rails, Splash Guards, H11 Xtreme HID 5000K, 5202 LED Fogs, 194 LED Lic. Plate, LED Interior, 100K+ miles<br /><br />Her Lambda: '08 Enclave CXL AWD, Red Jewel, Cashmere Lthr, Driver Conf, Lux Pkg, Towing, NAV/DVD, 19" Chromes, Sunro