Reddit mentions of Metra 40-CR10 Chrysler/Dodge/Jeep/Ford/GM 2002-Up Car Antenna Adapter

thats because the junior high dropouts at GM decided back in 2000 to incorporate a primitive bus system throughout their vehicles. this means that your factory radio doesnt turn on with regular +12v like most other vehicles. it turns on with a data signal from the vehicle BCM normally. to install any stereo in this car there is a stupid bus interface (chimebox) that is required. without it your radio wont turn on. there should be an ignition wire running toward your fusebox on the passenger side of the center console in front of passenger seat. its the same with saturns, GMC's, oldsmobiles, pontiacs, chevy's etc. so you CAN run a wire to fusebox however your vehicle may start giving you check engine lights, ABS brake lights, losing door chimes, and in some cases i shit you not (changing from english to spanish on the instrument cluster) or your speedometer not going further than 50 mph. yes the chimebox is expensive but it is so much worth it to not have to worry about any bs popping up.

https://www.amazon.com/Scosche-GM13SR-Select-Replacement-Interface/dp/B001TDKJU8/ref=sr_1_1?ie=UTF8&qid=1467076495&sr=8-1&keywords=gm13sr

https://www.amazon.com/Metra-40-CR10-Chrysler-Antenna-Adapter/dp/B0002BEQNE/ref=sr_1_1?ie=UTF8&qid=1467076532&sr=8-1&keywords=40+cr10

and a 99-3302 for a single din stereo or a 95-3302 for a double din screen stereo

It'll work. Your factory radio's about a 1.5 DIN and that's a kit that adapts. Though, that pocket is gonna basically be useless. Also, yeah you'll wanna get that wiring harness adapter and that antenna adapter. I prefer this, this, and this specifically.

A couple people have said they may want to try this in the future. Let me post some helpful info for you guys that helped me along the way:


First here is a very helpful image of the wiring for the stereo harness for my 2011 F150 XLT 4DR SuperCab (not super crew) 5.0L V8 with SYNC and with integrated factory radio (see first image in the imgur album linked at the top of this post):

http://imgur.com/0TGvfZj


As you can see, and as I've said a couple times in this post, there is no accessory wire. This is really useful to have as the stereo will know when to turn itself on/off when you insert/remove the key. This post:

http://www.ford-trucks.com/forums/1118879-2011-wiring-diagram.html

showed me where I could find the accessory wire in the ignition harness. This video is helpful:

https://www.youtube.com/watch?v=S0dM2d9UEtk

in showing how gain access to the ignition harnesses, and at 1:20, he'll unplug the main ignition harness that contained the purple/green accessory cable. Note in the link i posted with the wiring diagram, it shows the accessory wire being in a harness that contains two rows of pins, but I tapped into a purple/green accessory cable that was in a harness that only contained 1 row (see video).

This is the exact trim I purchased:

https://www.amazon.com/gp/product/B00BG4NNQW/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1


which came with mounting brackets (OEM mounting brackets did not fit my new stereo head unit) for the stereo as well as a face plate for the stereo.

I opted to NOT retain my SYNC, as I didn't see the benefit of it. My new stereo unit had bluetooth so there was no need to use sync. This:

https://www.amazon.com/gp/product/B00B4PJC9K/ref=oh_aui_detailpage_o00_s02?ie=UTF8&psc=1


helps maintain the VOL +/- as well as the Prev/Next buttons on the steering wheel. Sync buttons no longer do anything.


You will need this:
http://www.amazon.com/gp/product/B0002BEQNE?keywords=chrysler%202002%20antenna&qid=1453138917&ref_=sr_1_1&sr=8-1

which connects the stock FM/AM tuner radio antenna to your new radio. I used this backup cam:

https://www.amazon.com/gp/product/B005Q65ZIK/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

which mounts on your license plate. Quick easy and cheap. I did purchase a wireless video transmitter, but it didnt work well, and just ended up running the video cable under the truck (was pretty easy with no lift too), through the firewall, under the steering wheel, and into the center dash. Hope this proves helpful to others!

I've just changed out my factory stereo with a new Alpine deck and couldn't have been happier on how easy it was. As long as you have the right wiring harness (http://www.amazon.com/gp/product/B0007KPRK6), dash adapter kit (http://www.amazon.com/Metra-99-6505-Dodge-98-UP-Pocket/dp/B0007WTFB6) and antenna adapter (http://www.amazon.com/Metra-40-CR10-Chrysler-Antenna-Adapter/dp/B0002BEQNE) then you'll be happy. You can buy all three from Amazon for less than $20.
Installation is a breeze too - stereo manufacturers have standardized on cable colors so hooking everything up to the harness was easy. To get the factory stereo out it takes popping out the vent with a screwdriver, 2 phillips head screws hold in the front fascia and then that pops out. 4 phillips head screws hold in the stereo and one 10mm nut on the back of the stereo. This pops out easy. Then you plug the new wiring harness in, plug the new antenna adapter in and screw the new stereo in the dash adapter back into the holes. Pop everything back into place and you should be good to go.
super_noodle has good points about the factory speakers - you definitely want to replace those as well. Super easy job as well as long as you have the right harness adapters (Amazon is a great place eh?)
Good luck and let me know if you need any more advice or assistance.

So here is the wiring for your car, in case you ever need to bypass the factory amp. Harness, Dash kit, and I believe you said you have the universal antenna, but if it's a small input may need this. Not sure if you have steering wheel controls either but if you do and want to keep it pick up this.

As for the radio pick up something with a name to it. Pioneer, Kenwood, JVC, etc. Listed some basic radios but invest a little bit more and you'll have bluetooth capabilities.

Best option for keeping your factory head unit is going with a universal Isimple. You will still need antenna adapters, found on amazon (forward and reverse for $5ech but if you have a best buy around you and you buy it from them the price includes install minus parts. Others have said go aftermarket which is a great option but it can cost significantly more especially if you have factory premium sound.

First, no that wiring will not work for the 2008-11 Focus. you will need this one. Also as the other person stated you will need that dash kit, even if you only have a single DIN unit, you need that piece. Get yourself an antenna adapter as well here and yes it says Chysler, but it's the one for our car.