Audio for a 24v diesel

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Joined
Apr 26, 2019
Threads
3
Messages
11
Location
Japan
I have a 24v 1pz and I want to upgrade the head unit but not instal an amplifier or extra speakers. I was under the impression I needed a 24-12 DC-DC converter. I pulled my OEM headunit out and it had a 12v sticker on it and I read out the connector and had two pins read ~14v.

So, am I misunderstanding this and the rig will accept a 12v headunit just fine or should I find a 24v marine unit to be safe? I do not have the FSM and I am having no luck finding wire diagrams for the rig. Any input you guys have is appreciated.

IMG-9958.webp


InkedIMG-9957_LI.webp
 
All the newer stereos I have installed for myself and family get their main power through an unswitched, always-on "memory" wire. The red power wire merely provides power to the on-off switch of the unit. If that 12V wire you located does not depend on ignition switch it will be easier.
 
I want to know this too. Thanks for posting.
 
Hi Tcash

If that is the original radio that was installed in your 1PZ , it means that you also have an 24-12 converter installed , perhaps an original one . Modern radios , don't work very well with these converters . I strongly advise you to choose a 24 volt radio . I did that and it works perfectly , connected only to the ACC fuse on the fusebox . The best ones I know are from Kienzle , VDO and Continental . Made in Germany , and build for use in trucks . Bluetooth , handsfree telephone , etc. ! Kienzle models have very classy looks and all of them are very user friendly to operate . And they are not too expensive . I have this one in my HJ61

https://www.kienzle.de/uploads/media/MCR2416BTK.pdf .

Visit this page ( Germany ) and you will see various models from Kienzle , Continental & VDO


Cheers from Portugal !
 
And this one is , perhaps , the best shop in Europe to buy these and lots of other 24 volt radios


They sell on eBay.de , too

Very efficient and professional seller .
 
I have an aftermarket cheapo Dual brand head unit in my 24V rig, wired to the factory plug and what ever factory 24v-12v converter is there. works just fine. :meh:

Why go thru the extra hassle to wire a separate 24V feed to the new stereo? if a 12V head unit was already there just plug a new one in and go.
 
CAT makes a really good converter that offers both constant 12V and intermittent 12V from the same device. Been using them for several years now without issue.

IMG_5371.webp
 
How do you wire it and what type of plugs do you use?

My local CAT shop would make me a pigtail with the correct plug for the converter and foot long leads coming from it. That way I could wire up any accessories I wanted and how I wanted.
 
I have an aftermarket cheapo Dual brand head unit in my 24V rig, wired to the factory plug and what ever factory 24v-12v converter is there. works just fine. :meh:

Why go thru the extra hassle to wire a separate 24V feed to the new stereo? if a 12V head unit was already there just plug a new one in and go.


Was trying to see if anyone else had success by using a regular 12v unit... I am trying not to modify or add to something that doesn't need it.
 
Hi Tcash

If that is the original radio that was installed in your 1PZ , it means that you also have an 24-12 converter installed , perhaps an original one . Modern radios , don't work very well with these converters . I strongly advise you to choose a 24 volt radio . I did that and it works perfectly , connected only to the ACC fuse on the fusebox . The best ones I know are from Kienzle , VDO and Continental . Made in Germany , and build for use in trucks . Bluetooth , handsfree telephone , etc. ! Kienzle models have very classy looks and all of them are very user friendly to operate . And they are not too expensive . I have this one in my HJ61

https://www.kienzle.de/uploads/media/MCR2416BTK.pdf .

Visit this page ( Germany ) and you will see various models from Kienzle , Continental & VDO


Cheers from Portugal !


Thank you! I was figuring going with a 24v radio would eliminate concerns. Just seeing what others have done. Thanks for your response! How are the rigs in Portugal? Are they set up for more desert/dryland conditions?
 
Thank you! I was figuring going with a 24v radio would eliminate concerns. Just seeing what others have done. Thanks for your response! How are the rigs in Portugal? Are they set up for more desert/dryland conditions?

Hi Tcash

These 24volts radios are very practical , very simple to install , very sturdy and user friendly on daily use . I have one of them installed in my HJ61 wich is 24 volts , and soon will install another on the 1999 HZJ75 I recently acquired . Rigs in Portugal usually have a very simple setup due to very rigid ( read stupid ) traffic regulations . Every minor alteration must be homologated by the traffic authority , by a lengthy and expensive proceeding . Even so , there is a good number of rigs setup for desert travel . When we can , we go to Morocco , Mauritania , Senegal , Guinea Bissau to have fun ! Nowadays , it is too dangerous to go to Mali , Niger or Libya , like we used to . It seems that Algeria is slowly getting more safe and we are receiving good feedback from some local friends there . Offroad in Portugal is still allowed in most parts of Portugal but it does not requires important modification on our rigs . They are already very capable as they come from the factory . Good luck with your PZ7# !
 
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You have a factory converter for your stereo located behind the glove box. I removed the stock unit and replaced it with something more modern with Bluetooth and USB hook ups. Been running it for years and never skips a beat.
 
What, exactly, is this vehicle? All we have to work with is an engine and 24 volts. It is difficult to provide definitive recommendations without the whole story.
 
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