I'm ready to start the build on my Cayman!
My goals for this build is to keep an OEM look, but obviously improve the sound quality. I just want it to be subtle. Just like the color of the car:
I'll be repurposing some Hertz Mille ML1600 and ML280 for a 2-way active system. I want a subwoofer, but of course, limited in available diameter in the rear trunk. Most I can do is an 8". Based on the advice of my local shop, and their knowledge of my tastes, they suggested the JL Audio 8W7AE-3 (depth isn't nearly as much of a problem as height). I'll be doing a sealed fiberglass enclosure.
For signal, I'm using the NavTV Zen-V MOST-150 adapter, and will feed an optical signal to the amp/dsp. I know some people will choose to use high-level inputs and sum the channels, I think this is the better, simpler method.
I was planning to use the JL VX1000/5i to power it all, and actually ordered one. I know some other people have used them in their Porsche installs (991, etc), putting it under the passenger seat. I did a mock/dry fit, and I didn't feel comfortable with the amount of strain it would put on the pigtail cables.
As I was looking though, it's wider than I was expecting under there, and I believe I can fit two smaller amps, side by side. I'm instead going with the Audison AP F8.9 for the front stage, and the AP1 D monoblock for the sub. As a "bonus," I'll now have enough power and channels to go 3-way in the future if I wanted to
I may even just try the mids that are in there now. If I don't like it, I can just mute those channels, and everything would be ready to go if I chose to buy some better midrange speakers at some point.
Ok, onto the build! First up, sound treatment.
P.S. I ripped apart a brand new Porsche within a week of ownership. All my friends think I'm nuts for some reason
This car has the "Sound Package Plus" system, which is the "base." It consists of a 3-way front stage, and 2 rear speakers (tweeter sized). The woofers and the mids are in the door, and the front tweeter is on the dash, actually under the air vent modules. Here, you can see the woofer and mid:
The tweeters were more difficult to get to. Those vents are firmly held in place! I have to give a huge shout out to Elevated Audio
, who were kind enough to help me figure out how to remove them. There are two sliding latches, four spring clips on the side, and one rear clip, all holding it in place. And between the shape and the **** windshield being in the way, there's no good way to get much leverage. When the clips are released, it comes up and out at around a 30 degree angle. Once it's out, the tweeters are simply clipped into place (it's not fully clipped in in this picture):
And here's what the vent itself looks like for anyone else trying to figure out how to get it out:
Now I just need to figure out how I'm actually going to mount the new tweeters. I'll definitely need to cut away some of the plastic that originally surrounded the OEM tweeter. More problematic, there's no screw holes that I found, which I could use to make an adapter. I think I might have to resort to using double sided mounting tape, or a glue or something similar. I'm not in love with any of those ideas though, and am open to suggestions if anyone has any other ideas.
BTW, in the SPP, the mids and the tweets look to be on the same channel (same colored wires). Good news though, running new speaker wires to the tweets is super easy and straight forward.
I also went ahead and took out the seats, some trim pieces, the carpet, and the head unit (PCM 4.0)
I finished up the day soldering some 16/4 speaker wire to eventually send signal from the new amp to the speaker locations in the doors.
Next, I'll probably focus on figuring out the tweeter situation, then maybe run power. Might be able to start on speaker adapters as well.