[Galaxy S III Accessories] }{Alienz}{:
This is a personal setup for wireless charging and wireless car audio that I made over 7 months ago and have been using daily. So far as I know it works perfectly, sounds amazing, and is reliable.

Section 1: Wireless Charging

This section is a guide on using the Palm Pre/Pixi wireless charging method but it has two important distinctions from other methods. It doesn't create a bump or increase in thickness of the phone and it strongly holds onto the wireless charger stand via neodimium magnets.

Section Cost: $46

Materials Needed:

-Palm Wireless Charging Dock ($10)

-Palm Wireless Charging Circuit ($5)

-Neodimium Magnets ($15 tops)

-Galaxy S3 battery door (I used this one but you are free to use any non-metal one) ($8)

-USB Charging cable ($3)

-2 Amp Wall Charger or 2 amp car charger ($5)

-5-10cm of the thinnest wires you can find (Free)

-Soldering Iron

-Fine Sandpaper

Step 1: Preparing the back cover

The reason to get a new battery cover is because you will shave some of it on the inside in order for the circuit to fit without any noticable bumps on the phone. Since you want to have your original battery cover, get a cheapo battery cover you like (or another original one).

Using as fine a sandpaper as you can find, grind down the middle to lower section of the battery cover. It took me maybe 5-10 minutes of constant grinding to get the result I wanted. Grind as much as you desire but be careful not to break the battery cover or make it too thin.

Step 2: Prepare the Wireless Circuit

The wireless circuit used will come from the Palm Pixi/Pre battery cover you bought. See these videos on how to remove it and install it successfully:

VIDEO TO REMOVE THE WIRELESS CIRCUIT FROM PALM PRE/PIXI Charger (Watch from 4:20 onward)

VIDEO TO CONNECT WIRELESS CIRCUIT TO GALAXY S3

Note that I did this by soldering two very thin wires into the phone pads directly. Pictures below are from this being used and shown to a lot of people after 7 months. I did it really fast since this was on my second Galaxy S3, hence the sloppiness. It has worked perfectly though so I don't see a reason to change it:

Also, when putting the circuit into your back cover, use the new stronger magnets you got. They will allow the phone to stay onto the charger and not slide off, even while driving aggressively in a car. I used tape here because I didn't have anything else around me at the time but looking back at it now, I recommend superglue for the magnets. That way, they won't move anywhere over time.

Finished result is shown below:

Section 2: Wireless Car Setup

This builds upon Section 1 by utilizing the wireless charging setup and makes it play music wirelessly to any car equipped with an AUX/Headphone jack.

Cost: $105

Materials Needed:

-Samsung BHS3000 Bluetooth headset ($35)

-SoundShocker Pro (Needed for volume)($60)

-USB Charging cable and 2-amp car charger ($10) the galaxy s3 set up to wireless charging

-Tasker (Get on Google Play) ($10)

-A2DP Connect Tasker Pluggin

Step 1: BHS3000 preparation

Disconnect battery from Samsung BHS3000 Bluetooth Headset.

Open the BHS3000 (several clips hold it together, use your nails or a fine screwdriver to pull them apart) and disconnect it's battery. This is so that it will turn on and off with the car. Don't worry, all the bluetooth settings and pairings will be saved.

Step 2: Connections

Connect the SoundShocker Pro to your car's AUX jack. Connect the other side to the Samsung BHS3000's output (headphones). Power your car and pair the BHS3000 with your Galaxy S3.

Step 3: Automation

This is was the hardest part perhaps when I was coming up with the design. The problem was as follows. Turn on the bluetooth and connect to the car automatically when charging wirelessly in the car but DO NOT do it if charging wirelessly at home. The solution to this problem is outlined in my Tasker profiles. Please install A2DP Connect Tasker Pluggin I linked in materials. Then import the profiles into Tasker by long-pressing "Profiles" and then "Import".

You may need to change one of the profiles so that the mac address of your BHS3000 is set to your device and not mine.

Finished result:

Q&A

1. Why do you need the SoundShocker Pro?

By default, the Samsung BHS3000 Bluetooth player is not loud enough. It is about 60% the volume of the phone as compared to when the phone is plugged in directly to the car via AUX. The SoundShocker Pro fixes that by making the volume LOUD. Around 130% as loud as plugged in via AUX.

2. Do you need a special kind of neodimium magnets?

No, as long as the magnets are thin (around 1/32') and wide (1/4'), they should work. If you can find thinner and wider ones, it would be even better. However, the 1/32 by 1/4 work VERY well and hold the phone strong. In fact, only 2 of them hold the phone on the stand.

3. Does NFC work?

Yes.

4. How is sound quality?

In a word, excellent. I have a 400W RMS aftermarket system in my car and to me it sounds really good.

5. How quickly does the phone charge?

Not all that quick sadly. The charge is 500mah wirelessly. This allows you to keep the screen on and play music while driving with the phone charging slowly (1-2% every 10 minutes) but if you also want GPS, it will barely maintain the same battery level. I find that when fast charging, I simply plug the Palm dock power cable directly into the phone.