u/arminoxx

Hey everyone, hoping someone with auto electrical or aftermarket head unit experience can point me in the right direction.

I bought an Android replacement screen/head unit from AliExpress for my 2015 Mitsubishi Challenger. I’ve been trying to get it installed for a while but I can’t get the screen to turn on at all.

It came with a vehicle-specific harness and a CANBUS box. The seller is saying the cable they supplied might not be compatible with my car and suggested I take it to an auto electrician.

The part I’m confused about is that I tried to take the car’s wiring out of the equation and power the unit directly using the pinout they gave me.

I connected:

The screen still did absolutely nothing. No logo, backlight, sound or any sign that it was getting power.

I’ve also already had the seller send me a replacement screen and the second one is doing exactly the same thing, which is why I’m starting to wonder if there’s something I’m missing rather than both units being faulty.

The unit does come with a CANBUS box, so could that be the issue? Does the CANBUS box actually need to be connected for one of these units to boot, even if I’m feeding 12V directly to both B+ and ACC?

I’ll upload a video of the test as well as the pinout the seller provided.

Mainly I’m trying to work out whether my direct power test should have been enough to make the unit turn on, or whether these vehicle-specific Android units sometimes need another signal from the CANBUS box before they’ll wake up.

If anyone knows a good way to bench test one of these properly, or what voltages/signals I should check with a multimeter, I’d really appreciate the advice.

Thanks.

Bought a car head unit replacement and it was defective, seller wants me to use another link and pay about 200 aud before he refunds it and send me a replacement screen.

Hey all, bought a car with a dual battery system, but not sure how to activate the 12v plugs in the back of the car when the car is off. Appreciaite your help

Want to change the old trailer socket with a dual 7 pin/ anderson plug socket but not sure what's the best way to mount it to the towbar. I want to make it clean and tidy but would like to avoid drilling into the towbar if possible

Noticed that the car I've bought recently has the socket bracket drilled into the towbar, does that impact the integrity of the towbar?

Separately, I want to replace the socket with a flat pin one, what's the best way for mounting the new one on the towbar?

Found this puddle under the car in the morning after driving it all day yesterday.

Any idea where to check for leaks ? Smells like oil but not too sure

Mitsubishi challnegrr 2015