Stereo Install/troubleshooting Q's
I bought myself a 2008 Cobalt LS a little under a year ago, and the whole time I've never had working speakers in the front (either side). I tried to rectify this problem at first by going to the junkyard and finding a pair of speakers to swap them out. I went ahead and swapped them, and no change. I have absolutely no sound from the front speakers whatsoever. I should clarify that this car has no stereo modifications at the moment. The head unit also stays on after the car is turned off until what I'm assuming is the anti-battery draining feature shuts it off. I don't think that these two problems are interconnected, as the door switch is stuck in and I'm guessing that's why the head unit doesn't shut off.
I'm at the point now where I trust that this car is going to last a while, and I'd like to go ahead and get the front speakers working as well as do a little bit of upgrading.
I had the head unit out today to have a look and confirm that there wasn't a previous hack job that could be causing the speaker issues, and it looks untouched.
I'm considering having my Alpine deck installed, as well as some door speakers, at the local Future Shop.
The thing is, I have all the skills to do this (have worked with electrical stuff in College, aircraft application), but I just lack the confidence to do it on my car unless there's a detailed method laid out.
So what I'm getting at is what can I expect to need to do this on my own, is the head unit the most likely cause for the front speakers not working, and if anyone can point me to some clean/well done installs that'd be great.