All the 2004-2009 Prius' electronic goodies - post your questions and modifications here. Sat, 11 Apr 2026 21:33:47 +0000 Sat, 11 Apr 2026 21:33:47 +0000 PriusChat https://priuschat.com/forum/gen-2-prius-audio-and-electronics.13/ Sat, 11 Apr 2026 01:46:14 +0000 https://priuschat.com/threads/question-regarding-replacement-fob-for-2008-prius.259601/ https://priuschat.com/threads/question-regarding-replacement-fob-for-2008-prius.259601/ invalid@example.com (Khrisppp) Khrisppp
I recently got a 2008 prius that was imported from Japan. And finding out the main key fob drains the battery after like 3 days and the 'spare' doesnt work at all. And so I'm looking to get a new fob and use the chicken dance method to program it. The issue is that I cannot find my exact key model.

My fob is a black logo with two buttons, so no panic button. It is basically impossible to find the exact model (B21TA). I've found after market B23TAs and was wondering if anyone...

Question regarding replacement fob for 2008 Prius]]> 4 Thu, 02 Apr 2026 22:57:35 +0000 https://priuschat.com/threads/prius-mfd-part-numbers.93343/ https://priuschat.com/threads/prius-mfd-part-numbers.93343/ invalid@example.com (The Critic) The Critic
I have a 06 Prius w/Nav and Back-Up Camera that needs a new MFD. Build date is 6/06.

I keep seeing two different part numbers on ebay:

86110-47220
86110-47071

Which one is the correct one? I know the -47071 one also fits the older 04-05 vehicles, so I wonder if it is the low-resolution model. However, one wrecking yard said the unit that came out of their 06 Prius was a -47071, so now I am not sure.

Any advice?

Thanks.]]> 7 Wed, 18 Mar 2026 12:31:57 +0000 https://priuschat.com/threads/carplay-question.259326/ https://priuschat.com/threads/carplay-question.259326/ invalid@example.com (TechBill) TechBill
There seem to be quite a few options out there, but I haven’t found one with consistently good reviews. Several reviews say the unit doesn’t come with a resistor that’s needed to keep the top dash display working.

I’m not looking to invest in an expensive stereo. Just something...

Carplay question]]> 2 Wed, 11 Mar 2026 01:26:15 +0000 https://priuschat.com/threads/tesla-style-screen-to-replace-mfd-and-radio.252620/ https://priuschat.com/threads/tesla-style-screen-to-replace-mfd-and-radio.252620/ invalid@example.com (black_jmyntrn) black_jmyntrn

Exciting news! I’ve not only discovered another Toyota model that shares connectors to the back of the MFD/Radio with the Gen 2 Prius, but I also found a company that manufactures these Tesla style screens. I'm currently collaborating with them to make sure that these radios can showcase the diagnostics menu. Even better, since they already have access to the CAN bus from behind the radio, I’m...

Tesla Style Screen to replace MFD and Radio?]]> 22 Tue, 10 Mar 2026 22:17:16 +0000 https://priuschat.com/threads/led-light-bar-installation.197928/ https://priuschat.com/threads/led-light-bar-installation.197928/ invalid@example.com (ShaneBacon) ShaneBacon
Here is the light bar I plan on installing:

...

LED Light bar installation]]> 9 Tue, 10 Mar 2026 13:19:17 +0000 https://priuschat.com/threads/old-mfd.258848/ https://priuschat.com/threads/old-mfd.258848/ invalid@example.com (outtabounds) outtabounds
Old mfd]]> 11 Tue, 03 Mar 2026 22:43:59 +0000 https://priuschat.com/threads/question-on-12v-outlets.1349/ https://priuschat.com/threads/question-on-12v-outlets.1349/ invalid@example.com (mikepaul) mikepaul
As delivered, it requires that the 12V outlet in the Prius be active so it can be plugged in there to jump the car. As I understand it, the outlets in the Prius aren't active (all the time) unless you do something about it. The MULTI5.PDF in the library doesn't show it being a dealer-settable option like I remembered.

So I need...

Question on 12V outlets]]> 12 Fri, 27 Feb 2026 04:00:53 +0000 https://priuschat.com/threads/wires-connection-of-back-up-camera-to-mfd.116959/ https://priuschat.com/threads/wires-connection-of-back-up-camera-to-mfd.116959/ invalid@example.com (cozmisu) cozmisu
I just bought this camera SONY CCD Car Rear View Camera For Toyota Prius 06-10/ Camry 09 10/ Aurion 06-11 | eBay) from ebay.
I conected the 2 power wires to the rear lights (to power-up the camera), and pull the other wire (RCA) till near the MFD. How I can connect this wire to the MFD? no RCA female on the back of the MFD.
The car is Prius Gen.II, 2008, executive with...

Wires connection of back-up camera to MFD !!!]]> 181 Thu, 26 Feb 2026 01:18:17 +0000 https://priuschat.com/threads/no-power-to-mfd-radio-clock.259052/ https://priuschat.com/threads/no-power-to-mfd-radio-clock.259052/ invalid@example.com (4thesporty) 4thesporty
new owner of a 2007 with JBL 9 speaker, no NAV car. I've been cleaning and correcting a few things to make sure this is roadworthy for my daughter in a few months when she gets her license.

I removed my dash to try and clean the combo meter lens (ended up just removing it as it could not be made clear again) During this process I also replaced the digitizer on my MFD as touch was not working on it. Upon reassembly I tested the MFD and found that the new digitizer didn't change the...

No power to MFD, radio, clock]]> 2 Fri, 20 Feb 2026 04:43:34 +0000 https://priuschat.com/threads/radio-volume-is-0-or-max.259092/ https://priuschat.com/threads/radio-volume-is-0-or-max.259092/ invalid@example.com (RyanD) RyanD
I just bought a 2008 Prius and the seller has lived with an audio issue for the last couple years. When I go to play the radio there is no sound, but when I turn the volume knob to level 1 the speakers max out. I went to settings and set the audio to only play through the rear passenger speaker. The same issue occurs and when I turn the volume up further the other speakers go in and out as I twist the volume knob and always at max volume. It's the original radio. Any suggestions?...

Radio Volume is 0 or Max]]> Tue, 10 Feb 2026 01:28:25 +0000 https://priuschat.com/threads/android-with-ac-control.247933/ https://priuschat.com/threads/android-with-ac-control.247933/ invalid@example.com (Drew442) Drew442
Currently my MFD has the no back light issue and I'm using that issue as an excuse to replace the factory MFD with something more modern.

I'm trying to find some info on Chinese Android head units and growing tired of messaging AliExpress sellers regarding the AC control and JBL amp control options.

I'm happy to bypass the JBL amp if need be (can rewire and use passive crossovers for the tweeters) but AC control is important to keep.

Given the factory MFD is unusable I'd...

Android with AC control]]> 3 Sun, 08 Feb 2026 03:09:32 +0000 https://priuschat.com/threads/2005-prius-bluetooth.258578/ https://priuschat.com/threads/2005-prius-bluetooth.258578/ invalid@example.com (KitsuneVoss) KitsuneVoss
I am currently using an FM transmitter for that although it also has a tape deck which I have seen tape deck to Bluetooth adapters.]]> 1 Sat, 31 Jan 2026 20:36:57 +0000 https://priuschat.com/threads/free-factory-radio.258616/ https://priuschat.com/threads/free-factory-radio.258616/ invalid@example.com (jvierra) jvierra 2 Sat, 10 Jan 2026 22:25:00 +0000 https://priuschat.com/threads/2005-prius-remote-issue.258579/ https://priuschat.com/threads/2005-prius-remote-issue.258579/ invalid@example.com (KitsuneVoss) KitsuneVoss
2005 Prius - Remote Issue]]> Fri, 09 Jan 2026 20:24:40 +0000 https://priuschat.com/threads/can-bus-settings.245174/ https://priuschat.com/threads/can-bus-settings.245174/ invalid@example.com (ALCRO) ALCRO Few days ago i buy 9inch android head unit that goes on MFD place.

And i have trouble connecting can bus box to work so that i can have climate control on my Prius 2 gen.

Is there any solution for this?
I place the resistor between 9 and 10 pin.
But still no fan control for climate.

Here are few pictures.
I have no more idea. I like the screen but its pain to play with heating only in steering wheel.]]> 13 Sat, 03 Jan 2026 02:06:51 +0000 https://priuschat.com/threads/amplifier-install-recommended-wire-paths.258468/ https://priuschat.com/threads/amplifier-install-recommended-wire-paths.258468/ invalid@example.com (Priapet) Priapet
I might do a full re-wire. Never added an amp to a car with a large battery bank before. Any spots I should avoid that cause a lot of signal interference?

Amp 1
- power will run from rear battery along pax side to amp, grounded just under the pax seat.
- RCAs directly from head unit to amp, about a 2-3 foot run.
- all speaker wiring will run up or down the...

Amplifier Install - Recommended Wire Paths?]]> 1 Wed, 31 Dec 2025 02:55:59 +0000 https://priuschat.com/threads/cd-player-works-then-stops-then-plays-again.258437/ https://priuschat.com/threads/cd-player-works-then-stops-then-plays-again.258437/ invalid@example.com (Frances Orteza) Frances Orteza
CD Player Works Then Stops Then Plays Again]]> Mon, 08 Dec 2025 13:03:06 +0000 https://priuschat.com/threads/prius-nhw20-aftermarket-radio-install-two-cars.258176/ https://priuschat.com/threads/prius-nhw20-aftermarket-radio-install-two-cars.258176/ invalid@example.com (wbgenetic) wbgenetic
I'm installing a standard universal Android head unit (came with standard ISO harness, GPS 4gb/64gb ROM. 8 Core CPU) into two different NHW20 Priuses and need a confirmed list of adapters/pins for each. I'm aiming for the No-CANBUS path on the base model, but may need one for the Navi car.

Car 1: Base Model (Dad's Car)...

Prius NHW20 Aftermarket Radio Install (Two Cars)]]> Wed, 03 Dec 2025 06:18:56 +0000 https://priuschat.com/threads/rav4-subwoofer.257809/ https://priuschat.com/threads/rav4-subwoofer.257809/ invalid@example.com (outtabounds) outtabounds 1 Tue, 02 Dec 2025 18:52:01 +0000 https://priuschat.com/threads/2008-prius-all-keys-lost-no-dash-board-lights.208540/ https://priuschat.com/threads/2008-prius-all-keys-lost-no-dash-board-lights.208540/ invalid@example.com (Chami76) Chami76
I bought this 2008 Prius all keys lost. when I try to program a new key just realised there is no dashboard lights coming including immobiliser light. horn and hazard lights working. no headlights ... this means my 12v battery is ok. where should I start my trouble shooting now ?? I have a bought 2007 ECU + key and full kit thinking I can replace them with this car. but I have this power issue now. my kit I bought includes

Year of donor vehicle: 2007 (2003-2009)
Included:...

2008 Prius all keys lost & no dash board lights]]> 1