Converter/Radio install in BJ71 (1 Viewer)

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Today the wife and I tackled the job of installing a converter and a stereo into her BJ71. When she received it this week it came with the factory AM radio only. After being used to the modern convenience of bluetooth and satellite radio she was not digging the AM radio. Lol

So today we went from this:
IMGP2606-XL.jpg


To this:
DSCN0899-XL.jpg



First we had to remove the old converter. I'm not sure of the quality of the unit, but it was only rated for 7 amps and was tapped into the lighter for the 24 volt feed. The new converter is rated at 30 amps and should be able to handle more than this little guy.
IMGP2593-XL.jpg


IMGP2594-XL.jpg


I didn't like using the lighter as a feed for the 24 volt side of the converter because A) I feel like going straight to the battery is a better connection and B) The lighter turns off with the ignition. Because of this I ran two leads for the new converter straight to the batteries for the 24 volt feed. After that we had to "fashion" new brackets for the new converter. I think it worked out rather well.
DSCN0883-XL.jpg


So on to the stereo install. Losing the memory every time the key turns off did not really sit well with me. With the wife using the bluetooth for her phone I really wanted to keep the memory. So, my solution was to somehow use the ignition wire to the headunit and use the constant at the same time. Because the ignition wire in the steering column is 24 volt I knew I couldn't use that. Everything else in the rig that is switched off of the ignition is also 24 volt so I couldn't use it either. I had already planned to install a fuse block coming off of the 12 volt side of the converter and last night the solution hit me! I could run two wires off of the inverter 12 volt side, one to the constant on the headunit and one to the fuse block! I installed a toggle switch between the converter and the fuse block to act as an ignition switch until I can figure out something different to use. So far it seems to be working great, if the wife and I can just remember to flip the toggle switch when we get out if the rig.;)
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I could not find a better spot to mount the fuse block so into the glove box it went. With the toggle switch installed everything we hook to the fuse block will be switched to turn off when the switch is flipped.
DSCN0902-XL.jpg


I also switched the lighter to 12 volt while I was there so we can use it to charge the cell phones and the such. I might add another in the future if needed.

So, there it is, a converter, fuse block, and stereo installed in just under 10 hours! Lol Thoughts, comments, concerns, or questions are all welcome!:bounce:
 
nicely done.
you ended up using the same inverter and fuse box that i would have recommended.
:clap:
 
You could replace that manual switch with a 24v relay. The switching current is 24v, the switched current is 12v.
 
Looks good, I went with a 24v radio single DIN instead so I could keep the pocket, but I have the same converter and fuse block sitting on the bench, for the next project. I plan on using a similar set up for mine. Glad to hear it worked out good for you!
 
You could replace that manual switch with a 24v relay. The switching current is 24v, the switched current is 12v.
I would love to replace the toggle switch with a relay. My limited knowledge of electrical couldn't figure out how to do it though. I would love a schematic and a recommendation for a relay if you have the time!
 
I would love to replace the toggle switch with a relay. My limited knowledge of electrical couldn't figure out how to do it though. I would love a schematic and a recommendation for a relay if you have the time!

Here's what I used...

http://theelectricaldepot.com/index...id=428&zenid=65bfa3b02139eed76722a0f79eb5621d

Hella relays are popular too.

And here's a decent write up on how to wire...

http://www.mp3car.com/the-faq-emporium/117895-faq-relays-how-they-work-and-how-to-wire-it-up.html

Cheers
 
The voltage that matters to a relay is the signal voltage (pin 86), the switched voltage (pin 87) can be anything within reason. So ya, you don't have to worry.
 
so..
along the same lines
i am installing a third battery into a 24V HJ60. the Redarc charger regulates the charge between the 24V battery system and the 12V system (not sure how it does this but the owner says it does)
from the 12V battery i am installing a 12 gang fuse box but i want to have "key off" to the circuit.
i have a 24V relay that i can use but it is only 30A and the fuse box can carry 125A.
does anyone have recommendations as to what relay i can use in this scenario?
 
You might try one of these part numbers from McMaster ....
7995K42 or 7995K25 or 7995K33. I think one of the first two would be adequate.
 
sweet
thanks
i deal with McMaster for a lot of stuff, never new they sold these ...
will order today
cheers
 
No problem ... they are almost always my first go-to spot. Hope to be contributing more on this side of the forum shortly ..;) [/HIJACK]
 
So if I understand correctly I can buy this 24 volt relay, and wire it like so:
12527647e9129233622.bmp
and it will work? I don't have to worry about mixing 24 volt and 12 volt in the same relay???

Constant 12v power out from your 24v-12v converter goes to pin 30, NOT power from your 24v (high side) battery. Then you use tapped power from 24v IGN or ACC to pin 86. When 24v are applied to 86, 30 and 87 are connected (12v from your converter to your accessories).
 
This is just what I was looking for also, doing the same set up on my 74 but was hung up on how to turn off the power with the ignition. I get it now 86 and 85 (ground) are 24v off the tapped ignition, and 30 and 87 is the 12v power lead to the fuse block and the ground just goes direct from 12v to fuse block in our case.
 
Are you going to leave the 24 to 12 converter hot all the time? I was thinking the 30 & 87 would be in the 24V+ lead to the converter, effectively switching the converter on and off with the ignition / accessory tap. :hmm:
 
Are you going to leave the 24 to 12 converter hot all the time? I was thinking the 30 & 87 would be in the 24V+ lead to the converter, effectively switching the converter on and off with the ignition / accessory tap. :hmm:

If you do that then you don't have always on power for radio's memory circuits and such.
 
if you are really concerned then you can run a non-keyed 10 amp inverter just for the memory and such, super cheap and easy to install
 
Do you have a specific recommendation?
 

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