2014 silverado LT without bose system with 7in LCD.
Replaced factory head unit with a pioneer one. Took iot to the local stereo shop and we are having all kind of problems. gauges bottom out, blinkers arent working properly and everything on the dash is goin crazy

 

sounds like they hooked up a wrong wire. did you buy the interface module for that vehicle or did you try to hard wire it?

 

The guys at the shop ordered the maestro.

 

I took the Maestro out and replaced it with a PAC RP5-GM51 and still the same results