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I honestly can't wrap my head around that either. I measured voltage at the RCA's and didn't see anything amiss, but after reading countless threads on DIYMA, there seem to be occasional ghost issues with Helix amps and dsp's. Things like software glitches sending full signals despite...

Lc2i is set up, gains have been set to the Helix DSP and now suddenly everything is working. Went home with Bass for the first time in weeks! Next up I need to tweek my tune, install the conductor pro and get my mess of wires in the hatch better organized. I'm not sure if this was an issue...

I've clipped the tapped signals going to the stock amp (after the rca taps but before the amp), and output voltage is still between .3 and .4 ac volts which is below the technical threshhold for the Helix M Four DSP. I've got an AudioControl LC1i on the way that I'll install as a line driver to...

Regarding the hissing, it's only coming from the tweeters and goes away if I remove inputs from the amp. When I'm in ATF's DSP PC-Tool 6, I can mute the tweeter channels directly and the hissing stops. When I adjust the output gains for individual channels I can reduce the hissing but it...

Well everything is in and sadly I'm dealing with signal issues...sub amp is shutting down and/or going into fault when I plug the rca's in from the M Four DSP. There's also a constant hiss in the front speakers that doesn't change with the volume knob. I've set crossovers/slope in ATF's DSP...

I've been busy so haven't had much time the last few weeks but finally got some time to make progress today. I fabbed up some adapter plates for my Stereo Integrity tweeters, ran speaker wires up through the dash and installed the new tweeters. I'm committed now so hopefully should be able to...

I had time to pull my door panel off and get one speaker wire run through the door wiring loom. I was worried about this as my hands aren't exactly small and drilling out the plugs is a little intimidating, but the Z plugs seem to have a lot more room than the 370z. The door side plug has an...

Amp rack is in and fully wired. It's messy, but all wire connections are either ferruled with heat shrink tubing or otherwise appropriate terminal connections. I enjoy running wires in 12v applications and the satisfaction that comes with a well terminated wire :) I attached the 2awg ground...

The stock Bose subwoofer is an active, powered subwoofer. It gets a signal from the stock amplifier located near the top left of my trunk pic. You can improve the stock Bose sub performance with an EQ app, but it's still limited in it's range. It'll get louder but it stays pretty tight and...

Amp rack is cut out and test fit. I should be able to get it wired this weekend. It's janky but will work for now. I also broke down and bought the Stereo Integrity M28 and TM65 MkIV to use instead of the Morels. I wanted to go with Audiofrog's GB60 and gb10/ or 25 but the GB60's are out of...

I bought it over a year ago and still have yet to hear it! I'm stoked to get this finished.

I spent the weekend pulling trim and running wires to replace the factory Bose system. I was originally going to wait a while to source some better components, but I have a 2 way system that was originally intended for my 99 4runner that I'm going to put in the Z for now until I decide what...

Thanks man. Seeing your build is inspiring and gives me something to focus on, I appreciate it.

Any reason you're not going with 6x9's for your door speakers, something like the Audiofrog GS690? It seems like with the available dash mids and tweeters adequately able to cover the mid-range to highs, the 6x9's would give you really strong mid-bass which is what I always seem to lack with...

I picked up a 2025 Performance last week and was, like everyone else, instantly dismayed by the "premium" Bose system. This site has been a ton of help so far as I start planning a full system build, especially since YouTube seems to be lacking. I did run across a guy who had an easy solution...