Post by: cws on June 29, 2026, 12:02:52 PM
Carl
Post by: Espeelark on June 29, 2026, 06:07:29 PM
I bet if you ripped that OEM board out and did a hard install it would fit. It won’t be easy, but I bet it can be done.
Paul
Post by: faithie999 on June 29, 2026, 06:13:00 PM
1) save the 3s-21 for another project and purchase a 3S.
2) remove the printed circuit board and all the white connectors, identifying all the wires (track current, motor leads, lights, etc)
3) hard wire the 3S to all the wires that were previously connected to the now-removed circuit board
4) use the smallest speakers you can find (i've used iphone 4 speakers which are pretty thin)
if none of this is applicable to your model than feel free to ignore the advice!
good luck
Ken
ps--if you are still short on space in wedging in a 3S, you can remove the plastic housing (voiding the warranty) and wrap the module with Kapton tape which will provide electrical insulation.
Post by: cws on June 29, 2026, 07:55:56 PM
Fortunately, I have a spare 3S! off to eBay to find an iPhone 4 speaker...
thanks!
Carl
Post by: William Brillinger on June 30, 2026, 04:10:18 AM
Post by: LVRR1856 on June 30, 2026, 05:56:37 PM
Streamlined Backshop has them ....