Question Any idea what gives with this vehicular MP3/Bluetooth device and USB sticks?

BonzaiDuck

Lifer
Jun 30, 2004
16,154
1,757
126
Jinserta Bluetooth FM Transmitter Handsfree-Calling Radio Adapter Car Kit with Dual USB Port

If anyone here had followed my threads at "Garage" on how I brought my 1995 Isuzu Trooper into the 21st century, they might remember what I did with this cheap piece of Chinese technology. With my Dremel, I made a solid walnut back-plate fitting the shape of the device's front panel, and installed it in a rectangular shelf of my vehicle's center console.

I added an extra illuminated rocker switch for it. It has always worked dependably and "just fine". With my installation, I still kept my cigar-lighter free and functional, and eliminated the problem other had with the device disconnecting when the car would hit a bump in the road.

It was made to simply turn on when you twist the ignition key -- thus my rocker switch. It otherwise turns off by pressing the center button in the left-side dial.

The LED screen is small, and you are not going to pick a different album to play while driving, or you'll wreck your car as a road hazard worse than a college girl with a cell-phone. I use it with a mini USB stick by SanDisk. As my 32GB stick filled up, I found a 64GB unit. But it is also getting full, with only 19GB now of free space.

The device instructions say that it works with a 128GB USB stick. The caveat with USB sticks of any size is that they must be formatted as FAT-32 -- and that's the way most of these USB drives ship initially. It gets trickier when you want to reformat them.

Anyway -- THE PROBLEM: 64 GB USB sticks work just fine. You can use the device to drill down through subdirectories to pick an album -- for instance "Local Folder" -> .. -> "Rock and Roll" -> "Kansas" -> "Carry on Wayward Son", and the device will begin with that tune and play the whole Kansas album, looping back for replay.

For some reason, a 128GB USB doesn't work to allow the folder selection and so forth. I can't figure out why the size of the USB drive matters in this way. But I can see that expansion of the music library probably means filling up a second USB stick to keep handy in the vehicle.

AFTERTHOUGHT: It appears that Amazon used the photo of my Trooper's center console with an earlier version of the walnut retainer. Giving away my personal identi-titty!
 
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VirtualLarry

No Lifer
Aug 25, 2001
56,570
10,204
126
Use FAT32Formatter!

MS crippled their own tools, to only support FAT32(X) to 32GB. Otherwise, it punts to ExFAT on newer OSes, which is often subtly incompatible with embedded devices that want a "pure" FAT32 solution.
 

BonzaiDuck

Lifer
Jun 30, 2004
16,154
1,757
126
Many Thanks to Fzabkar and VirtualLarry.

I think I will explore the matter of cluster-size first of all. I know about FAT32Formatter.

The troubles I faced with this earlier beginning 2021 had me losing patience and ordering more 64GB SanDisk USB Cruzer Fit stubs. They have other uses, of course, and I prefer these little stubby models: you can't bump into them and cause damage when they're sticking out of the mid-tower front-panel.

So I have some 128GB units --- originally formatted as FAT32 -- to play with.

As for my 21st century Android Trooper LS with its modernized center-console enhancements: I still use the original OEM Isuzu digital receiver, and was able to replace the damaged Isuzu 12-CD changer with a brand-new unit still in the Isuzu carton ($80). A 9-inch Samsung Android tablet ensconced on my dashboard feeds a bluetooth signal to a device in the receiver's cassette player, and the Jinserta MP3 (and Bluetooth receiver) feeds the receiver through an FM signal.

If I eventually find that I absolutely must use a second USB Cruzer Fit for additional music, well -- I'll live with that. the micro-SD card in the Android tablet is 128GB, and it's upgradeable to 256 GB.

It's like a disc jockey working several turn-tables: I can queue up "Bach's Complete Harpsichord" on the Android, push a button on the receiver to play Miles Davis "Birth of the Cool", and push another button for the Stevie Nicks album on the CD Changer.

I'm apprehensive that if I eventually spring for a late-model RAV4 Prime Hybrid vehicle, I won't be able to give up my love affair for the 30-year-old Trooper ride. :D
 

fzabkar

Member
Jun 14, 2013
166
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The reason I asked about cluster size is that the FATs in a 128GB drive will occupy twice as much space as those in a 64GB drive. If these FATs are loaded into RAM by the device, then it may be that there is insufficient capacity for the larger FATs, assuming that the cluster sizes are the same. The solution in this case would be to reformat the 128GB drive with double the cluster size of the 64GB drive.
 

BonzaiDuck

Lifer
Jun 30, 2004
16,154
1,757
126
The reason I asked about cluster size is that the FATs in a 128GB drive will occupy twice as much space as those in a 64GB drive. If these FATs are loaded into RAM by the device, then it may be that there is insufficient capacity for the larger FATs, assuming that the cluster sizes are the same. The solution in this case would be to reformat the 128GB drive with double the cluster size of the 64GB drive.
I'll investigate the respective USB drive properties today.