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The Tru prototype is coming together!

This weekend I designed the prototype T-harness cable and passthrough device and sent the specs to the manufacturer for quoting. I have also finally named the two products, so it will be easier to discuss them moving forward: S2i Trū - this is the digital integration device that allows you to...

Busy working on the analog T-harness option.

Good news for those who have been asking for a lower-cost post-amplifier T harness option. I figured out a way to make a T harness despite the funky factory connector availability. It will be a bit different from the typical T harness as it will be an enclosure that you plug into. It will be a...

For the latest updates I recommend you join my Slack that I created. DM me for the link. That said, I'm happy to give an update here as well. Progress has been significant. I have found and addressed some design issues in the first boards that I got from the manufacturer, so that has caused a...

I should add, if you want to be a Beta Tester, please DM me for the Slack link as I will be selecting Testers and managing the process there, and only there. Thanks!

Yeah, my question was more about what ports people have on their DSPs, in case going one way or the other would limit the population of compatibility. I think we're still good with RG6 SPDIF for now. If that changes, I'll just design a solution for it :)

Hey all — quick update. I've set up a Slack community for this System Integrator project where I'll be posting dev updates, answering questions, and gathering feedback as things get closer to launch. Figured it'd be a better home for ongoing conversation than scattered forum threads. It's also...

nevermind... sidegrading to Toslink will add significant cost to the device, so I'm sticking with RCA/RG6 for the first series. If there ends up being a big demand for embedded Toslink conversion I'll pick that thread back up then.

Question for the group: if you had a choice between an RCA digital output and Toslink optical output, which would you select?

Followup question- how long should the harness be? Factoring that the longer it is the more expensive the end product becomes.

I've got a question for you guys and gals. If you were to buy this product, would you want to use the option to utilize the factory speaker wiring, or run your own? The factory wiring is pretty thin, so it's not great for high powered systems, but would be fine for modest power (say 50-75 wpc)...

I just did some research on the 10th gen civic and it looks like it uses the same strategy for digital source and volume control! I'll be working on that platform next, after I can claim success on DE5/FL5.

Pre-production PCBs have been finalized and ordered just now! Woohoo!

I ended up withdrawing my PCB order last night as I realized I wanted to make additional changes. I'm happy to report the redesign is done! Change Log: Upgraded from one to two DACs as I found a way to do it without going to a 6 layer PCB, so the added cost is incremental. This means that...

Unexpected but positive followup update: The PCB manufacturer rejected my design for a minor issue last night, and thankfully I had to wait until morning for them to set up a way to update the file, because overnight I had an aha moment that changes the design and would have rendered the PCB...

Exciting Update 3/31/26: PCB orders have been placed for the motherboard and both vehicle model daughterboards (Honda Civic XI with Bose, and Acura Integra DE4/DE5 with ELS)! There was a lot of fiddly stuff to address in the design in order to get a clean and reasonably-priced build. All SMD...

Thinking about this more, when the time comes (right now the priority is getting to beta test asap), I'll likely design an aluminum bracket and have SendCutSend manufacture it. Will need to pull my amp to do this, but it won't be that bad.

I fully anticipate someone will do this and share it with the community! I am focused on getting a working drop-in product to market first, and then if there's time I can tackle this (but I suspect someone will get to it before me!)