Cant install Pioneer deck.

did you make the wiring harness or buy one? Or does it plug directly into your vehicle? or did you just splice the wires?

If all that happened at once, highly suspect a broken wire harness that feeds your door panel.
I think there are separate circuits for the locks and the windows and mirror.
At the factory, I believe the doors are installed on the vehicle with the wire harnesses already in them, means they plug the door harness into a receiving socket in an under-dash harness.
I'd wonder if the vehicle had been in an accident on that side.
Be blessed.

go to store that sells car decks and look for a wiring harness for ur car its about $7 mybe and prettymuch match the colors on ur deck to the harness and then pull ur old deck out and pull the harness from the back the back of that deck and plug that into the wire harness u just bought and hook up the antenna for radio andput the deck into the dash the wire harness should also come with so directions too just in case

Yes, that is the best way to go. Most local automotive stereo stores sell an installation kit that has a surround that the new stereo mounts in to and fits the space of the stock stereo, and also comes with a wiring harness that wires the new stereo to a plug that fits tthe car's stock radio connector.

I suppose your looking for a plug and play fit where you just buy it and fit it and leave it? well Pioneer stereo's have adapter fittings for alot of models and i think it would be worth your while checking that out. Pioneer also makes alot better radio's/ decks than the oem manufacturer radio that is for that vehicle. If you cant find the adapter for your vehicle, it will cost you around 40-50 bucks to have it installed properly.

Need some more info. Is your unit the small square tuner at the top of the dash next to the gearshift and the cassette in the center of the dash below the AC?. If so, you need to install the deck in the center below the AC. To make it very easy use the adapter harnesses as well, that way 80% of the installation can be done at the kitchen table. Wire the harness kit to the new decks harness, mount the deck in the kit, then put the antenna adapter on your new unit. In your truck, that whole center AC area pops off then it's 4 screws and the cassette is out. Same for the Tuner piece. The factory antenna wire is right behind the cassette deck. Pull it back, plug it in, test your speakers, snap it back in the dash, replace the tuner part with a pocket and your good to go. Total time hour to 2 hours for a novice. If you need further help, post a comment and I can help you step by step. Hope this helps

Hello clarky909,

On your Alero, the 12V constant wire is ORANGE and should connect to the YELLOW wire coming from the DEH-2300 wiring harness. 12V switched on your Alero is YELLOW and should be connected to RED coming from the DEH-2300.

Hope this helps.

Here is a manual for a deh-p43.
It should have the same standard wiring.

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to install this unit in your car........as a beginner i would strongly recommend buying a aftermarket radio harness (this harness will attach to the wire plug in your factory deck simply unhook the factory player and attach this harness to the plug you just pulled out of the factory unit) once this harness is installed on the factory plug it will be a simple colour match (just attach wires to pioneer wires IE. red - red, white - white........once all the wires are attached install in dash recommend buying a mounting unit for this net part it will hold the deck in place in your dash...........after that is done install your pioneer unit push it in place apply power by turning car on..........pioneer deck should turn on and work if it does not turn right on look for a source button on the pioneer unit and hold it down till the unit turns on
good luck
hope i was able to help

yes.......... just buy a mounting kit for your car and a wire harness for your car.........to install just unplug factory radio and clip the harness on to factory plugs that you just unhooked from factory radio now just attach the same colour to colour wires from your new deck to the harness......mounting kit comes with instructions
(make sure to buy WIRE HARNESS & MOUNTING KIT for your car) and your install should take less than a hr to do
have fun