See if the 12v socket for accesories is hot all the time or only when the car is on. Otherwise, look for the line that turns the radio on with the ignition...bust out the multi meter.
Justin from Detroit wrote:If the car has a factory amp, it has a factory amp turn on. Usually a pink wire.
yea but that is to turn on the factory amp.....dont the 05 cavaliers need to keep the factory hu to run some of the things like onstar and blinkers and all that crap?
dont feel bad bill i had a customer today accuse me of messing up his tach by installing the hu....it was very straightforward and the job was done a month ago but today he says i messed up his tach......
As far as car electronics messing up (Tach). It just amazes me how this stuff happens. Sometimes you install some kind of equipment and it has strange effects elsewhere on the car.
THe owner instantly blames whoever installed it, as it was fine until YOU messed with it. Or YOU were the last person to mess with my car! Blah.
