TheUKCrazyhorse Posted August 20, 2021 Share Posted August 20, 2021 Hopefully posting this in the right place, apologies if I've not. Bought a 2004/54-plate 3.0 V6 Alphard a fortnight ago and been tinkering with it over the last week. It did have an aftermarket head unit connected up, which I (think I) managed to break while trying to reconnect the ceiling DVD player. I managed to pick up an original head unit from eBay for £21, which the seller assured was working when they removed it from their car, but I'm struggling to get it working in my Alphard. I plug it in, making sure all the available connections are attached, but I get no display (ignition on and off). Weirdly though, if I press the Open button, the front opens up and I have access to the CD and minidisc drives. I tried holding in the Power button for a few seconds, but no joy. I checked all the fuses and they seem fine. I found the 12V pin on the connector and put a multimeter on it and got a good signal (over 12V). There also seems to be a good ground connection. Not sure what else I can check, or if there are known issues transferring a head unit from one Alphard to another? (Security locked or something?) Any help would be appreciated here, as its driving me bonkers. Cheers! Quote Link to comment Share on other sites More sharing options...
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