Originally Posted by BobbySpeed

I probably don’t, but I wanted to know where it would be located so I don’t have to pull out my head unit now and again when I get my new one. I don’t want to break the trim from repeatedly pulling it off.

Originally Posted by chrisbinsb

Thanks for the tips and ideas - I was able to work the wires up and to the right just enough finally get it pushed into place. Seems to be working well so far, nice to have something more modern in there that I can connect my phone to at last..

Originally Posted by malahhaor

Great info and huge thanks to OP for the info.
I just installed an Android in my 2008 GTS. But i didn't have a navigation or AMP to begin with, so i lost no functionality what so ever

I would like to give back in case others may need it and provide a little more info. Since my car came with what i think is called CD23? I had only one antenna input. So no need for the dual FAKRA adapter (sending mine back). Also my car still has fiber-optic even thought there is no CD changer or AMP.
I didn't think i had fiber-optic so i didn't buy the MOST adapter and **** my pants when i got in there. Almost stopped the install and went online to order one but then something told me to try it anyway and strangely enough everything works perfectly fine. I completely left fiber-optic unplugged and all is well. I don't think that it is being utilized in my car. Based on my experience with Benz, when its active one of the lines will have a faint red light. In my car nothing..... so i closed it up and left it hanging.

Phone works, Bluetooth music works, radio works but extremely poor reception. And i did connect blue antenna wire from adapter to the wiring harness so not sure what the issue is for now.

Originally Posted by ulflun

Thinking of upgrading my 2008 957 Cayenne head unit. There is alot of android units out there. However I have these two concerns:
1) What vendor do take care of their units and update them with latest Android unit etc? Feels like alot of "one hit wonders" releasing a unit getting old (from a software perspective) after a year.
Do you have any recommendations for vendors? I want a 9"+ unit with no physical buttons.

2) Does any units decode fuel consumptions etc? Or is the OBD way to go?

Originally Posted by Jonathan H

1. Android 10 is highest I've seen offered. I wouldn't plan on ever updating it. Seicane was tops for a while but I think all the sellers have pretty much the same thing now. If I were buying one today I'd probably get this one and the $75 MOST decoder.

I have another 9" one with no buttons at my house in Texas. New in box with MOST decoder same model I've been using. I'll sell it to you cheaply (like $150 shipped) if you can wait a month or two for next time I get to go home. It's Android 8.0 or 8.1.

2. What are you trying to decode exactly? The car has Miles Remaining built into instrument cluster just takes a few clicks to find. The tablets in theory should connect to obd but obd will drain battery if left plugged in 24/7. I just connect obd to my phone when I need to see something.

Originally Posted by ulflun

Thinking of upgrading my 2008 957 Cayenne head unit. There is alot of android units out there. However I have these two concerns:
1) What vendor do take care of their units and update them with latest Android unit etc? Feels like alot of "one hit wonders" releasing a unit getting old (from a software perspective) after a year.
Do you have any recommendations for vendors? I want a 9"+ unit with no physical buttons.

2) Does any units decode fuel consumptions etc? Or is the OBD way to go?

Originally Posted by sgtm7

In my opinion, Android OS updates for a head unit, haven't really done much for the operation of the head unit since Android 5. With Android 5, you started seeing fastboot/autosleep option, so that the head unit turned on as soon as you turned on your car. Other than that, I haven't seen any major benefits of having the newer OS on a head unit. With phones, the newer OS was needed for hardware improvements(fingerprint scan, Iris scan, etc.). No major hardware improvements to headunits that actually require newer OS. The amount of RAM and ROM is more important than the OS version.

I was using a bluetooth ODB scantool that I kept plugged into my ODB port. There are several apps(Torque, Dash Commnand, etc.) that you can use. I was using them on all three of my cars. The option to view fuel consumption is there, but I don't know how accurate it is, because I never really cared about it. A month or so ago, I switched to another device, that plugs into the ODB port and the viewing screen is mounted on the dash. It saves me the time of needing to start the app on my phone, and connect to the ODB scanner via bluetooth. This one does fuel consumption, but I have no idea how accurate it is. https://www.amazon.com/Lzcat-Speedom...934344&sr=8-13

Originally Posted by ulflun

Thanks! I think it has happened quite a lot with Android versions, especially UI improvements, Google voice, Android Auto, notifications/sync features etc. Also apps from Google Play does not support all old Android versions. Also want to keep it updated for security reasons, since I want my connected to the internet.
The best alternative going with a new HU seems to be keeping it up to date with root/custom ROMs. Not even players like Alpine, Sony keeps them updated.

Thanks for the tip! Does it power off automatically some how? Drained my BMWs battery with a ODB scanner a couple of times, when I forgot to unplug it :-)

Originally Posted by Shalz

Thanks RazMan. Tried again and all works, just realised I forgot to connect the amp connector instead of looking for aux connections for the speaker.

How are people playing their Spotify or mirroring their phones onto the screen?

There is a Bluetooth music app, but it shows song and next or previous. Can't see playlists or browse anything.

Is there any app to mirror or use the phones Spotify account directly?

Originally Posted by Potential

Hi Shalz.

Did you manage to solve this no sound problem for the non-Bose non Fibre optical PCM 3.0?

,I am also having a similar system and I experiencing the same problem of no sound while everything else works

may you please share the solution:-)

Thnx.

Originally Posted by Jonathan H

I may have bit off more than I can chew due to various factory audio options in these vehicles but we'll see where this goes!
*****INCOMPLETE POST*****APPROXIMATELY 40% FINISHED AS OF 10/06/18***** Factory camera wiring instructions added 01/06/19
Still need to finish text, finish editing videos, link steps to minutes of video, draw diagrams, choose pictures and diagrams, and credit contributors of solutions from prior threads.
Planning to finish the 955 portion 100% before continuing the 996 portion.

Posting this now because some items have long shipping lead times if people seek to minimize cost. I wish I narrated this in such a way to make the video only 10 minutes but I didn’t plan a script of what I would say and shoot… Lessons learned for next time I make a tutorial on something.

This post applies to 2003-2010 Porsche Cayennes and 1999-2005 Porsche 911 996. I am merging all info and videos into one monster OP so that people with other Porsche models can extrapolate other helpful information for similar installs in their own Pcars.

Disclaimer: Safety first. Proceed at your own risk to yourself and your vehicle and equipment.

Difficulty level: Was a 4/5 when the information was not centralized but hoping this post brings it down to a 2/5 if you don't have to run wires for aftermarket backup camera.

I've installed Android 8.0 head units in my 06 CTT, 06 CTTS, and 01 996 thanks to the information I picked up in 9" Android Radio Install Review thread and similar threads such as....INSERT THREADS. I will now concentrate all the important info here for everyone interested in installing their own but hesitant about proceeding.

First the obligatory photos of vehicles:
The Titanium 2006 Cayenne Turbo is for sale here.




CTT and CTTS important details going in are PCM, factory backup camera, and Bose package (which communicates via fiber optic MOST).
996 important details going in are non-Bose, Becker radio w/ cupholders up top and CD changer w/ climate down low. People with climate up top may need other parts and can find this discussed at length elsewhere INSERT LINK.

HEAD UNITS :
There are a number of options out there. Some have *****, some have buttons, some have front slots, some have front mics, some are touch only. The most important factors to me were front mic (no need to run mic wire) and Android 8.0. I don't think the OS is easily updated so I wanted the latest available.

I bought these three:
06 955 CTTS for $415 shipped. w/ MOST box
06 955 CTT for $400 shipped. w/ MOST box
01 996 for $300 shipped. (I don't recommend this exact unit because it does not play nice with dimensions of available pre-made kits)
INSERT DIMENSIONS REQUIRED FOR INTERIOR OPENING

If you have a 955 with Bose then you need MOST box. Some ebay auctions include it and some don't. Some give option to pay them ~$75 extra to include it.
I recommend the Android units advertised specifically for the 955 because they are shaped to fit perfectly flush in the dash and steering wheel controls are all mapped and CANbus typically included.
The CTT head unit specs are 1024*600 screen, Android 8.0, PX5 Octa Core+, 4GB RAM, 32GB Flash


TOOLS :
Tool 1: 100 pack of solder seal connectors for $13
Tool 2: Wagner Furno 750 Adjustable Temperature Heat Gun for $65 (I set it to 550 degrees and used heat-focusing included adapter
Tool 3: Electrical Tape
Tool 4: Dash trim removal tool set for $11
Tool 5: Screwdriver and I recommend this bit set but you mostly just need T20 bit for this job.
Tool 6: Dremel and cut-off wheel
Tool 7: Wire cutter and stripper for $20
Tool 8: Wire smaller than 14 AWG and a couple lugs and crimper

955 PARTS :
955 Part 1: Twin Fakra to Single DIN Car inline Signal Amp Amplifier Booster for $6
955 Part 2: 12V 30/40 Amp 5-Pin SPDT Automotive Relay qty 5 $12 (you only need 1 and you only need it if you have factory backup camera)
955 Part 3: Fakra A Male to RCA Male Adapter Cable for $4
(only needed for factory backup camera)
955 Part 4 (optional): BATIGE Square USB 3.0 Blank plate for $10 (only get this if you have a free blank button space out of the 5 above PCM screen)
955 Part 5 (optional): BATIGE USB 3.0 & 3.5mm Cigarette replacement for $11 ATTEMPTING TO INSTALL IN ASHTRAY OR UNDER GLOVEBOX—WILL RECORD IF SUCCESSFUL Not successful; factory ashtray cig lighter cannot be easily modified.
955 Part 6: extra wire, preferably high quality and smaller than 14 gauge. If you buy the SPDT relay kit you can chop up one of those harnesses and use that wire.
955 Part 7 (optional): 4 Channel MOST box from Russia found by user mrottjers - A couple people installed this and said it gave sound improvements and Fade capability. Personally I'm happy with the 2 channel.

955 INSTALLATION :
YouTube Video part 1 (7m21s) discusses disassembly, FM radio, and GPS
YouTube Video part 1

955 Step 1: Turn on car, turn Porsche head unit volume to maximum, and turn car off. (thanks to user hgupta for this suggestion)
955 Step 2: Remove head unit trim with nylon pry bar. Don't break it because replacements are $200+. If the aluminum colored trim separates from the black plastic (one of mine did) you can epoxy it back together and use painters tape and C-clamps to ensure it stays completely together until it bonds.
955 Step 3: Remove Porsche PCM head unit and unplug everything.
955 Step 4: Attach Y-split Fakra to factory radio Fakra females (black and brown). Attach video RCA adapter to factory camera Fakra (green). Attach CANbus to android power harness. Attach Android power harness to factory power and CANbus harnesses. Attach factory fiberoptic connectors to MOST box if you have Bose.
955 Step 5 (optional): Run aftermarket backup camera if you don't have a factory one. Attach SPDT relay if you DO have factory backup camera. Route USB and Aux cables as desired. I have heard 3G is pretty awful on these so I only ran data USB cable.
SPDT theory of operation: The relay operates (switch changes position) when there is 12V across the coil. Without the 12V on the coil, contacts 87a and 30 are connected to each other. When 12V is applied to coil, it is contacts 87 and 30 that are connected.
SPDT wiring instructions:
86 RELAY COIL IN spliced to the orange REVERSE IN wire on the android power harness.
85 RELAY COIL OUT and contact 30 spliced to each other and ground.
The factory camera motor operates to pop out the camera when the blue wire on the porsche factory power harness is grounded.
Blue wire on Porsche factory harness connects to ​87 contact.
Nothing connects to 87a contact.

955 Step 6: Run Android head unit GPS to dead space top center of dash. Remove A/C vents first to check for screws and to help route the wire. Unscrew screws if present then remove upper speaker vent. Dremel a notch in the edge so the GPS wire doesn't interfere with speaker vent sitting flush. User levdeb kindly informed me with a helpful photo that some Cayennes have two screws holding the upper speaker vent and those cannot be simply pried off like mine in the video.
955 Step 7: Soldering time. Connect and solder MOST wires for Ground, ACC, and 12V.
MOST ground splices into Android harness ground wire. Add another splice at same time for a ground lug and/or other device grounds.
MOST ACC wire connects to blue AMPCON wire on Android head unit speaker output harness.
MOST BATT 12V wire splices to Android head unit power harness power wire.
MOST RCA wires connect to FRONT OUT L and FRONT OUT R of the Android head unit speaker output harness.
Connect and solder the blue power wire of the split Fakra antenna amplifier to the blue ANT wire on Android head unit speaker output harness.
955 Step 7 Troubleshooting:
Power up the car to test that you have sound. After connecting your phone via bluetooth go to HOME on the head unit and swipe to A2DP app. Alternatively plug in to the AUX input or insert a flash drive into the USB media cable and browse to your music.
In the event that you wired the MOST but can't get any sounds through the car's speakers from head unit, user hgupta suggested bypassing the Android head unit and plugging a low volume audio source into the MOST box directly using something like this $1.50 adapter in order to verify if your problem is MOST or head unit.
To Be Continued...

RELATED AND COMPLEMENTARY 955 TUTORIALS:
User Stringbag made this great write-up on running the wires for an aftermarket backup camera.


996 PARTS :
996 Part 1: VW8 Audi/VW amplified antenna adapter for $6
996 Part 2: Porsche radio removal tool for $1 to remove Becker radio or set of finger nail clippers as shown in youtube video 8ylEoBVja3o
996 Part 3: Metra 70-1787 Radio Wiring Harness for VW/Audi Bose Integration 1993-2007 for $9
996 Part 4a: Double DIN installation kit like this one for $25 that includes cubby to replace factory CD changer
996 Part 4b: or this one for $50 with no pocket but slightly better looking finish
996 Part 4c: or the $150 Euro Motorspeed kit which I remember some saying high quality trim CITATION
INSERT DIMENSIONS OF INTERIOR OPENING OF EACH
IF ANYONE HAS DIMENSIONS OF INTERIOR OPENING OF THE $150 KIT PLEASE PM ME. as an engineer it drives me nuts these companies don't provide this most basic piece of information that in itself defines the kit
996 Part 5 (optional): BATIGE USB 3.0 & 3.5mm Cigarette replacement for $11
996 Part 6: extra wire, preferably high quality and smaller than 14 gauge.
996 Part 7 (optional): Porsche OEM cubby part number is 996-552-253-01-01C and costs $70. I'm just using the one from $25 kit.

I believe the following quoted info applies to all three install kits linked above. Adding 996 Part 3 should allow for compatibility with option 680 HiFi audio system and maybe others..
Taken from Suncoast Double Din conversion kit:
"1999-2001 models - Compatible with the standard radio (CDR220) and standard radio (CDR220) with BOSE, or HiFi Sound Systems. Not compatible with cars with PCM radios AND option 680 (HiFi Audio System or BOSE M680 - you will have to create your own speaker wiring).
2002 models - Compatible with all radios.
For 2003-04 models - Due to the MOST fiber optic system, you may need to bypass/replace the factory amplifier for BOSE and HiFi audio systems."

996 Installation :
To Be Continued after finishing 955...