Prius C Radio Upgrade Parts List and Instructions

First, I will start with a parts list of what I used to install this stereo...

Wiring

USB Adapter cable (Axxess AX-TOYUSB)
Axxess AX-TOYUSB (axtoyusb) USB Adaptor to Retain the OE USB in Select Toyota and Lexus Vehicles

-----DOES NOT WORK----- AUX and Remote Cable (Metra 70-8114) -----DOES NOT WORK-----
http://www.sonicelectronix.com/item_36709_Metra-70-8114.html

Wiring Harness for Power and Speakers (Scosche TA02B)
Amazon.com: SCOSCHE TA02B Wiring Harness for 1987 and up Toyota: Car Electronics

Antenna Adapter (Metra 40-LX11)
http://www.sonicelectronix.com/item_52427_Metra-40-LX11.html?SearchClickout%5Bquery_id%5D=14058239&SearchClickout%5BIgnore%5D=1

Steering Wheel Control Interface (Metra Axxess ASWC)
Amazon.com: Metra Axxess ASWC Universal Steering Wheel Control Interface (Black): Electronics

Satellite Antenna Adapter (VaisTech SFA12F)
SFA12F Antenna cable for select 2007-Up Lexus LS & IS & Toyota :: Antennas, Adapters and Boosters :: Car Stereos and components
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InDash Kit

Scosche Kit (TA2114B)
Double Din Dash kit

---------OR----------

Panel Sub-Assy, Inst (55405-52880-C0)
55405-52880-C0 - OEM Toyota PANEL SUB-ASSY, INST

-----Use only for small areas----- ABS Cement (Oatey #31803) ----------
32 oz. ABS Black Solvent Cement-31803 at The Home Depot

Plastic Putty (JB Weld #8237)
2 oz. KwikPlastic Adhesive Putty Stick-8237 at The Home Depot
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Component

Head Unit: Kenwood DNX9980HD
Kenwood - DNX9980HD

Components: Morel Elate 6
Morel ELATE MW 6 Component Systems at Onlinecarstereo.com

Satellite: Sirius SCC1 kit
Kenwood SC-C1+CA-SR20V (scc1_casr20v) SIRIUS SiriusConnect

Speaker wire: 18Ga 4Ch wire
For only $16.94 each when QTY 50+ purchased - 100ft 18AWG CL2 Rated 4-Conductor Loud Speaker Cable (For In-Wall Installation) | 18AWG Loud Speaker Cables
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So... There is my list. I am sure there is something I missed but it pretty complete. I really wanted to use the stock antennas so I didn't have to run new ones so I first started with taking a picture so I could compare. I found they make an antenna adapter for the XM radio (SFA12F) but could not find a perfect one for the GPS.



Attach all wires. A couple hints. Connect: pink to green/black wire of the ASWC and baby blue to green/orange wire of the ASWC. Then connect the 3.5mm to 2 wire adapter and connect the brown wire from the ASWC to the remote wire input on the Kenwood harness. I also recommend manual programming as I could not get it to recognize the right radio. See pages 8-11 in http://assets.sonicelectronix.com/manuals/metra/aswc.pdf



Next, I attached the brackets from the stock stereo onto the kenwood. It is a direct fit and even has alignment pins to make sure they are lined up.






Next, take the trim piece that was included with the stereo and trim it to fit into the remaining space.









Now, place the trim back over the top. At this point you can be done or keep going.



Now I used hot glue and some black ABS cement to glue the 2 pieces together.



I used Plastic Putty and filled in the spaces to smooth out the spaces between the two trim plates then waited for it to dry and sanded out the bumps.



Prime with a high build primer and sand smooth.



All done.



For the speakers, see prius C speaker size | PriusChat for the door panel removal instructions.

The biggest part is drilling out the rivets and making the speaker trim ring. I made mine at 8" exterior and then cut around the screw holes to make it fit behind the door panel. I only needed 1/2" think wood but wanted to waterproof it so I used ABS Plastic cement and coated the whole piece of wood. Sorry, I forgot to take pics of the process put here is a pic of it mounted.



The next thing was to duplicate the tweeter mount. I used plastic, traced the other bracket and cut it out. Then mounted my tweeter to it and ran the wires.







Lastly I mounted the crossovers under the seat and the sirius under the other seat. Best of all, I didn't block any of the vents so the back seat is still comfortable.

 

With or without the wires plugged in?

 

I will try to get the head unit pictures posted soon. I still have the one I pulled out, at the moment, I have not done anything with it yet.

 

If I am wrong, someone please correct me.
1. Reverse signal wire (I think... There is only one thin pink wire plugged in)
2. Reverse camera (Nothing plugged in on mine so once again, I think)
3. Jumper cable to 11
4. XM Radio Antenna
5. Power, Ground, Speaker output, (normal wiring on any install kit)
6. Jumper cable to 11
7. Steering wheel remote input, Aux 3.5mm input, Powered Mic Input (4 wires) and I am sure other things.
8. Antenna AM/FM
9. GPS Antenna
10. USB Header
11. Jumper Cable input from 3 and 6.

Most radios have all their circuitry and connections inside, so I find it strange that there is a cable that plugs into the back of the radio and goes no where, but part of the reason is so they can change out pieces if it goes bad I believe. It would make it easier to change out 1 whole circuit board.

Hope this helps.

 

I programed mine to be the att button to lower the sound on the radio. Unfortunately, it did not work as the bluetooth button as it the stereo has its own.

 

I went with the kenwood because it only took about 3 min to route the cable and clip the mic on the top of the plastic trim piece.