For the amp connection, I assume that it will be similar to my Hideaway. The harness seems to splice the rear speaker outputs from the Key and use them as high level inputs for the factory harness to the 500.1. Run the power wire to the battery and another wire for ground and you should be set up to run output from the amp to your sub.This is exactly what I want to do. A few questions…
(1) Has anyone tried these plugnplay harnesses that include the sub connection?
(1a) How do you connect the sub from the 500.1? Stupid question, but is that plug n play as well?
(1b)Do you still have to run power for the sub to the battery
(2) Any good ideas of where to put the 500.1? It would be nice if it was only the sub exposed.
Regarding other parts of this whole thread (19 pages at this post) I wanted to leave a few comments I think could help others. In my build, i installed kicker KS from Crutchfield for the 4’ and the 6.5”.
For the 4" speakers a lot of people haven’t found connectors and I located a post where a guy used these.
https://www.amazon.com/dp/B07XF11XMC/ref=pe_386300_440135490_TE_item
Not a true match, but you can make it work and the connections are snug. It’s a hack but it worked for me and I avoided soldering.
I used the shallow mount boom mats in all 4" locations and crutchfield bass blockers in the front. I forgot to install these to start and after a day of testing decided they were needed. It’s night and day so don’t skip the bass blockers.
The 6.5" can be replaced with 6.75" and crutchfield sells a mounting ring for them to adjust to factory as well as plug play connectors. I also used boom mats in the kickpanels, but this was a very tight fit.
One last piece of advice. Take it easy on removing the plastic cover for the two 4s in the front. The clip of upper left side of the cover ofn the drivers side and the upper right side of the cover on the passenger side are weak as hell. I broke one and it’s 5 weeks to get it from Ford and $16. I super glued it for now.
All in all this is a massive improvement compared to factory, but I would concur with others that an amp will be needed to get a really good sound from the speakers.
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