Voodoo101

There are 3 fuse boxes. I fitted a head unit and it had a short inside while I was driving. I had some of your problems when that happened. The gear selector indicator is on a fuse in the passenger footwell. You will also notice that there is no beep and even if you get the head unit working, there will be no reversing camera. That is all controlled by the gear selector fuse, which is why the doors wont open. it does not know if it is in park or not. The fuse for the head unit is in the engine bay fuse box if I remember rightly. My guess is that there are other fuses that have blown at the same time. Also check your alternator after. Mine packed up at the same time. A recon unit is available on ebay if that is the case. Rule number 1 when fitting a head unit. Disconnect the battery lol

My car came with a 7 inch Sony touchscreen unit. It had DAB radio, MP3 player and Android Auto / Car Play but the connection was a bit flacky. I chanced it for a 10 inch Android Unit with a replacement trim. This was when these units was mainly AliExpress. It lasted a month until the touch screen failed and ended going back. I used the Sony unit till last year when I decided to give an Android unit another go, this time going for a more reputal dealer, not AliExpress. I bought an Eonon 10 inch double din floating unit. A few months later it went really slow and would take about 10 minutes to connect to the GPS. They replaced it with another unit which would show the randomly show the Google Map full screen but really zoomed in and then the keys and touchscreen would not work. I spent more time on these two units resetting them. I actually kept a sim card remover in the car. They then replaced it with the newer model that the reversing camera did not work and the screen would flicker on and off

There is a fuse in the passenger side fuse box. Controls the reversing switch. I had the same problem, no beep when reversing, no gear indication on the dash. I went through all the fuses and found it in there

They are base on the android head units. Considering the quality of android head units around, i don't think i would trust it, but i'm on about my 4th head unit. Others may have had better luck and might say different

Hey Tony. I ordered a new cable off AliExpress that has a lead that plugs into the OBD reader. I haven't tried it yet cause I am upgrading to a 15 inch head unit. I have Raise canbus decoder which should all work together to give me the extra features. There is a post on this forum of somebody who tapped into the cables going to the speedo unit, because all the info goes to there aswell, but im not brave enough to do that. If the cable doesnt work, i can just unplug lol

Yeah, I think I need to take it all apart and check the cables because I got in the next day and it worked fine, then the following day it failed again. Could be a look connection. The other idea I had. I heard that the camera changes brightness depending on light around. Mine never did this, at night time it was useless, so I'm guessing the sensor has gone

My trusty 16 year old 230,000 mile Vellfire has developed a little fault today with the rear camera. Its been working fine, but today it flashed bright and then went really dark. You can still see the picture but its like when a TV backlight has gone. Has anybody has this before, is it fixable or is it a replacement part. Im assuming its fitted to more then just the Alphard / Vellfire. If so then it should be available from a scrappy or even Toyota. Anyone have any fixes before I go an buy a new one?

Your choices are down to what you want. Search the forum and there will be loads of answers as its a common question. What functionality you have at the end of it depends on what you chose

This one was not taped up and had been used. As I said it has the reverse line and the brake line in the same connector. I cant see why it would have another 12v power and earth in that cable when the unit would draw power from the main power connector which is why it is bugging me so much

I have a cable behind my head unit thats really bugging me. It has four cables, Red, Red, Blue and Black. I have tested with a meter and one cable is the reverse signal to put the head unit rear camera on. Another is the brake signal, to stop you watching videos while driving, the other two seem to be and earth and 12v, but I cant see any point for them as the head unit feed is on a different plug. Im kinda thinking its some sort of signal voltage but i can see any voltage change. Does anybody have an idea what these two wires are actually for because its starting to drive me mad

Yes I still have these fitted. I have two sets of brand new Ballast sat doing nothing. LEDs are working perfect. I changed the headlights aswell and I can actually see now when its dark

Im so surprised this has not been answered by anyone

Have you looked on AliExpress. They generally have adaptors on there for most cars

A car on Facebook failed its MOT the other day with them because it takes away the reflector. I think it depends on the MOT tester but its a chance

Maybe somebody that works there is called Tanya and thats why. (its ok, i have your back lol)