slimjim Posted August 26, 2011 Share Posted August 26, 2011 I know as I am posting this, it probably means I shouldn't be DOING it myself... but I thought it was going to be easier than this So, I think I have all the bits for my AVH-P4300DVD, but I can't get power to it. Here is the connector FROM the HU: Looks fine to me. Here is the Sextons converter: Also looks fine... and the wires/colours look like they match up fine when they are linked up... Like this: I have also chopped into the black earth cable in the sextons converter and linked it to an earth: BUT... I think there is an issue with the connector from the sextons converter to the car. LOOKS to me (could be wrong) like the connectors are the wrong way round!!! Looks to me like the HU is expecting power on one side and the car is giving it to the OTHER side. Am I wrong? Why else would the HU not load up? Quote Link to comment Share on other sites More sharing options...
Karlp Posted August 26, 2011 Share Posted August 26, 2011 Have you looked inside the black plastic blocks so you can see the silver pins where the wires go into and match them up to the other connector block? Quote Link to comment Share on other sites More sharing options...
slimjim Posted August 26, 2011 Author Share Posted August 26, 2011 On the sextons connector side, it looks like I can take them apart and alter them.... (Had a quick go but it seemed impossible to take them apart) Is that something I am supposed to do? Quote Link to comment Share on other sites More sharing options...
Ekona Posted August 26, 2011 Share Posted August 26, 2011 You really shouldn't have to. Are you sure you've connected the earth into the correct cable? Cut into the OEM wiring if you're not sure. Quote Link to comment Share on other sites More sharing options...
slimjim Posted August 26, 2011 Author Share Posted August 26, 2011 Yup, defo cut the right cable in the Sextons side. It is the only black cable and has TWO cables coming out of it. One is the main thicker one, which does form the HU connector to the car connector. The other one goes off to the bit for the steering wheel controls, so I presume it must be the earth. Gimme 2 mins and I will post up a pic Does the Converter to Car photo look wrong to you Dan? Quote Link to comment Share on other sites More sharing options...
Karlp Posted August 26, 2011 Share Posted August 26, 2011 On the sextons connector side, it looks like I can take them apart and alter them.... (Had a quick go but it seemed impossible to take them apart) Is that something I am supposed to do? No dont think your supposed to take them apart, they should be a block with around 7 pins all to the left or right then car block connector should fit straight in with the all wires mirroring each other in the blocks so there connecting, if that makes sense Are you using your HU ISO that maybe the problem, when I installed mine I didnt use the ISO adapter that came with my stereo I just plugged the original power block in that was in the car then used the sextons also. Quote Link to comment Share on other sites More sharing options...
Ekona Posted August 26, 2011 Share Posted August 26, 2011 I'll be honest and say that it's been so long since I looked at a 350 HU wiring loom that I wouldn't like to say one way or another matey. If the connectors fit, and you've definitely bought the right ones for the car and HU, then apart from the earth there should be no issues at all. Why would there be an earth running off for the steering wheel controls? Admittedly mine was an Alpine unit, but I don't remember anything like that on mine which is why I asked the question. Quote Link to comment Share on other sites More sharing options...
sparky370z Posted August 26, 2011 Share Posted August 26, 2011 you shpuld not require to take the block apart. mine was simply a plug and play affair. (apart from the steering wheel controls) check the cables on the back of the HU. it should have a diagram of what the cables are and what they do. also check in the manual for the same diagram. Quote Link to comment Share on other sites More sharing options...
slimjim Posted August 26, 2011 Author Share Posted August 26, 2011 No dont think your supposed to take them apart, they should be a block with around 7 pins all to the left or right then car block connector should fit straight in with the all wires mirroring each other in the blocks so there connecting, if that makes sense Are you using your HU ISO that maybe the problem, when I installed mine I didnt use the ISO adapter that came with my stereo I just plugged the original power block in that was in the car then used the sextons also. The ISO connector on the HU is tiny small... not standard at all. So I can't connect directly. I'll be honest and say that it's been so long since I looked at a 350 HU wiring loom that I wouldn't like to say one way or another matey. If the connectors fit, and you've definitely bought the right ones for the car and HU, then apart from the earth there should be no issues at all. Why would there be an earth running off for the steering wheel controls? Admittedly mine was an Alpine unit, but I don't remember anything like that on mine which is why I asked the question. No idea why there is an earth off to the steering controls. Looks like some kind of internal relay or something might be hiding in the plastic box.... I have power to the standard ISO ... but it seems ONLY to power the blue/white "striped" cable. Even if the lights or ignition are on, NON of the other cables seem to come live!? This connector here just looks wrong to me... i.e. the power seems to be on opposite sides? Quote Link to comment Share on other sites More sharing options...
DannyBoy Posted August 26, 2011 Share Posted August 26, 2011 I fitted a P4200DVD (essentially identical as far as connectors go) a few weeks ago, and the only cable splicing that was required was to solder the two loose green and silver wires together (can't actually remember exactly what they were attached to but they were pretty obvious as they were both only connected at one end), but even without doing this the HU still turned on and operated, it just didn't turn the amp on so I got no sound. From what I remember the wiring looms would only fit together the correct way, so you may have to consider that the HU might be DOA. If there's a car audio specialist near you take it along and they'll have a test bench they can plug it into to check if there's a fault, as well as being able to do an 'idiot check' on your wiring. i've done this before and the guys didn't even charge me anything for it. DB Quote Link to comment Share on other sites More sharing options...
sparky370z Posted August 26, 2011 Share Posted August 26, 2011 i think that the Blue and whit cable you speak of, powers the Amp. also the yellow cable you have your meter in on the 3rd pic, is the "battery" cable. fed direct (through a fuse of course) Quote Link to comment Share on other sites More sharing options...
slimjim Posted August 26, 2011 Author Share Posted August 26, 2011 If there's a car audio specialist near you take it along and they'll have a test bench they can plug it into to check if there's a fault, as well as being able to do an 'idiot check' on your wiring. i've done this before and the guys didn't even charge me anything for it. DB That sounds like a plan.... Don't think there is anyone round there though ... DOH! Quote Link to comment Share on other sites More sharing options...
sparky370z Posted August 26, 2011 Share Posted August 26, 2011 was there no instructions with the loom? Quote Link to comment Share on other sites More sharing options...
slimjim Posted August 26, 2011 Author Share Posted August 26, 2011 Right... good news and bad... GOOD news is... I popped down to my local stereo place and there was a guy there bored out of his skull who was VERY helpful and didn't charge me. Hooked it up to their test harness and the HU works perfectly! BAD news is... there is no ignition/'lights on' power to the standard ISO cables coming from the car... as I initially thought. The guy suggested I just used the ignition from the fag lighter, which is a good idea but I would like to find out WHY there is no ignition (or light switch) power... Anyone know where the fuse for that kind of thing is for me to check? Foot well or behind the battery? Quote Link to comment Share on other sites More sharing options...
sparky370z Posted August 26, 2011 Share Posted August 26, 2011 Seem strange, Footwell mate, says audio i think Quote Link to comment Share on other sites More sharing options...
slimjim Posted August 26, 2011 Author Share Posted August 26, 2011 Seem strange, Footwell mate, says audio i think Yeah, I checked that 15a when it wasn't working the first time round... Don't suppose I could have a dead dome issue? Husky? Quote Link to comment Share on other sites More sharing options...
slimjim Posted August 30, 2011 Author Share Posted August 30, 2011 Thanks to THIS post... Karl, Ian, Bang on the money fellas - I've found the blown 10A fuse - it was the mirror fuse which I hadn't thought to check before now. Anyway, power restored, HU working - just gotta tackle the line-booster again - I think if I use a 10A in it this time, I should be ok - will post up some pics when the install is complete. Thanks for your help on this - very much appreciated, what a top forum! I checked my MIRROR fuse.... was blown! Must have gone when I was disconnecting the auto fold mirror setup when I was taking the door off to fit the speakers. Replaced the fuse... tried the HU and it works!!!! Rock 'n' Freakin' Roll!!! Quote Link to comment Share on other sites More sharing options...
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