Quote:
Originally Posted by l0aded
So I am trying to install the 4" center speakers and went through the instructions. I am upgrading from the 400 Reference Series using the umbilical cable bypass and am having some issues.
After disconnecting the umbilical cable in the dash and attaching the factory wires to the new 4" speakers, I am getting sound from those speakers but now the 6.5" door speakers are not working. Anyone else run into this issue? I attempted to switch around the wires near the factory amp, there are 2 female connectors free and 1 male connector to play with but mixing and matching does nothing for the 6.5" door speakers.
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Got this fixed. If any earlier adopters (using the umbillical cable) from the Reference series are planning on getting the 4" upgrade, please know you will need the new reference adapter to make this work.
I spoke with Daniel about this issue and we solved it. He 1-day shipped the necessary parts.

As usual phenomenal customer service.
FYI, if you get the 4" center upgrade, definitely get your amplifier retuned. A poorly tuned 3-way (reference + 4" speakers no tuning) will sound worse than your nicely tuned 2-way (reference tuned); I will provide a review after getting my amplifier re-tuned for the 3 way and had some time to listen.