Repair / replace dead factory radio
Thread Starter
2nd gear
Joined: Jan 2026
Posts: 2
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Repair / replace dead factory radio
The radio in my 2014 RX350 died recently after changing the battery. Checked the fuses and the power in the harness, and it's isolated to the radio. I've seen lots of other threads where the radio has died after a battery replacement, but not much detail on what they did to repair or replace it.
I ordered an iNav radio from 4x4shop but their support is telling me it won't work without a functional factory radio. The way it connects, it expects to use the factory unit set to aux to output of the audio. The backup camera feed goes through the factory unit also, but since it doesn't power on, the camera and audio don't work.
Is there a way to bypass the factory radio and connect the iNav (or something else) directly to the amp/speakers and backup camera, or is my only choice to try to find a replacement factory unit or repair the one I have?
I ordered an iNav radio from 4x4shop but their support is telling me it won't work without a functional factory radio. The way it connects, it expects to use the factory unit set to aux to output of the audio. The backup camera feed goes through the factory unit also, but since it doesn't power on, the camera and audio don't work.
Is there a way to bypass the factory radio and connect the iNav (or something else) directly to the amp/speakers and backup camera, or is my only choice to try to find a replacement factory unit or repair the one I have?
CL Community Team
Joined: May 2005
Posts: 7,208
Likes: 1,735
From: VA
Did you check both fuse boxes? There is one under the hood and another under the dash to the left of the steering wheel.
If it is dead, you are probably better off finding a used one. It may also be less expensive. They appear to be between $350 and $500 on eBay.
Do you have navigation?
You will need the part number from the one in your vehicle.
If it is dead, you are probably better off finding a used one. It may also be less expensive. They appear to be between $350 and $500 on eBay.
Do you have navigation?
You will need the part number from the one in your vehicle.
CL Community Team
Joined: Apr 2001
Posts: 16,576
Likes: 1,393
From: Austin, TX
The radio in my 2014 RX350 died recently after changing the battery. Checked the fuses and the power in the harness, and it's isolated to the radio. I've seen lots of other threads where the radio has died after a battery replacement, but not much detail on what they did to repair or replace it.
I ordered an iNav radio from 4x4shop but their support is telling me it won't work without a functional factory radio. The way it connects, it expects to use the factory unit set to aux to output of the audio. The backup camera feed goes through the factory unit also, but since it doesn't power on, the camera and audio don't work.
Is there a way to bypass the factory radio and connect the iNav (or something else) directly to the amp/speakers and backup camera, or is my only choice to try to find a replacement factory unit or repair the one I have?
I ordered an iNav radio from 4x4shop but their support is telling me it won't work without a functional factory radio. The way it connects, it expects to use the factory unit set to aux to output of the audio. The backup camera feed goes through the factory unit also, but since it doesn't power on, the camera and audio don't work.
Is there a way to bypass the factory radio and connect the iNav (or something else) directly to the amp/speakers and backup camera, or is my only choice to try to find a replacement factory unit or repair the one I have?
When you say "radio" you mean the head unit [this has the radio, buttons that operate more than the radio]? or the radio FM/AM receiver?
When you say radio died? Do you mean portion of the headhunt died and do some buttons still operate?
6runner's suggestion about hard reset is excellent. Remove battery power for about 20-30 mins.
Head units getting destroyed after battery charge is not a frequent occurrence. A bad unit can pop a fuse though.
Salim
Thread Starter
2nd gear
Joined: Jan 2026
Posts: 2
Likes: 0
Thanks for the replies. All the fuses in both boxes tested good with an multimeter, also confirmed that there is power at the harness that goes into the unit. I tried disconnecting the battery overnight, and also did a scan with techstream but it didn't see the nav unit at all.
My car has the radio, nav, ac controllers all in one unit #86130-0E082. The 2010-2013's have a separate nav unit that sits behind the radio, but this is all in one. The nav/radio part won't power up, but AC controls work. No response from the power/volume control *****.
On eBay, my specific unit is around $1k, while the others that don't have the nav integrated are much cheaper. I also have units in other Lexus models from that era for $300-400 that have the same connectors in the same spots, so if I can figure out which board is bad I might be able to replace it.
I can't find any 3rd party units that bypass the factory radio and connect directly to the vehicle's amp and speakers.
It looks like my options are to send my unit off for repair, try to replace the bad board with one from anther vehicle, or replace my unit with a cheaper non-nav unit and a different wiring harness to try to get the inav to work.
Any other ideas?
My car has the radio, nav, ac controllers all in one unit #86130-0E082. The 2010-2013's have a separate nav unit that sits behind the radio, but this is all in one. The nav/radio part won't power up, but AC controls work. No response from the power/volume control *****.
On eBay, my specific unit is around $1k, while the others that don't have the nav integrated are much cheaper. I also have units in other Lexus models from that era for $300-400 that have the same connectors in the same spots, so if I can figure out which board is bad I might be able to replace it.
I can't find any 3rd party units that bypass the factory radio and connect directly to the vehicle's amp and speakers.
It looks like my options are to send my unit off for repair, try to replace the bad board with one from anther vehicle, or replace my unit with a cheaper non-nav unit and a different wiring harness to try to get the inav to work.
Any other ideas?
CL Community Team
Joined: Apr 2001
Posts: 16,576
Likes: 1,393
From: Austin, TX
One problem is that the head unit communicates with rest of the entertainment system with serial protocol so the infrastructure can not be bypassed.
You can throw out the whole system and replace it with fitment issues etc. Check with Crutchfield.
Check Asian suppliers like Amiyama
Keep waiting and checking eBay.
Contact salvage yards.
Salim
You can throw out the whole system and replace it with fitment issues etc. Check with Crutchfield.
Check Asian suppliers like Amiyama
Keep waiting and checking eBay.
Contact salvage yards.
Salim
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