Here's an alternate configuration that I think works pretty well.
Front : these:
Reference Series 6-1/2" component speaker system
www.crutchfield.com
Reason: crutchfield thought they were the best for upgrading
factory audio, and I didn't want to deal with the complexity of installing an amplifer under the dash.
Rear: these:
https://www.amazon.com/dp/B08J3QZ1ZQ?psc=1&ref=ppx_yo2ov_dt_b_product_details . Reason: to match the fronts.
Adapters:
Buy Scosche 2005-Up Kia Spectra 5.25” or 6.5” Speaker Adapter for Front Doors (1 Pair) SAKA656,Black at Amazon. Customer reviews and photos may be available to help you make the right purchase decision!
www.amazon.com
Buy Design Engineering 050320 Boom Mat Speaker Baffles, 5.25" Round (Pack of 2), Black: Speaker Systems - Amazon.com ✓ FREE DELIVERY possible on eligible purchases
www.amazon.com
Parts:
Buy InstallGear 14 Gauge Wire AWG Speaker Wire (30ft- Blue/Brown) | Speaker Cable for Car Speakers Stereos, Home Theater Speakers, Surround Sound, Radio, Automotive Wire, Outdoor | Speaker Wire 14 Gauge at Amazon. Customer reviews and photos may be available to help you make the right purchase...
www.amazon.com
Buy 170Pcs Auto Car U-Clip U Nut and Screw Assortment Kit for Dash Door Panel Interior SAE at Amazon. Customer reviews and photos may be available to help you make the right purchase decision!
www.amazon.com
Procedure: I removed the front and rear door panels by following the procedure here:
It's kind of way harder to get it loose initially than it looks. Really tight, shame to loosen a little but the car still rides fine without rattles.
Hint: Have an electric screwdriver or impact driver
For the rears, I used the adapter ring and the adapter to the speaker wiring.
Hint:
cut the soundskin in half lengthwise before inserting.
Hint: put the boom mat foam in and then put in the adapter ring.
Hint: you need extra screws, see above.
4-speaker sound-deadening kit
www.crutchfield.com
Rears were easy.
For the front, I did the wiring of:
adapter to the lower woofer -> input to the component box. I cut the adapter in half and solder/heatshrinked using a heat gun to audio speaker wire so the wire would reach.
The component box is
hot glued to the inside of the outer door panel, through the speaker hole. A big huge glob of glue. I think this is stronger than VHB tape. Just make sure it all works before you install it, it may be difficult to remove. Use extra-long wires so you can test run the whole thing before installing it.
You do not need to damage or remove the moisture barrier. Don't be stupid - don't touch that. Insert the wires carefully for the tweeter through the top.
You don't need to make your own bracket - use a
drill, not a dremel, and break the bracket loose from the tweeter. Just drill 2 holes where the glue inserts are.
Then I soldered to the tweeter wires with more heatshrink solder, and ran wires to the component box for the tweeter output. Black for negative. Same with the woofer.
And with all that it sounds pretty good. I cranked it to +3 on the bass because you know, this is a car, this ain't a concert hall. Volume level around 50, I have sensitive ears and this thumps decently well, obviously not as well as a dedicated sub.
Total cost:$60 (rear)
+ 8 + 11 + 10 + 10 (parts)
+ $214 (front, crutchfield)
And it did take me about 5 hours. About 3 were "learning", if I knew what I was doing initially it would have taken 2.
I think it's a pretty good deal. The other speakers everyone uses, the Focal Performance 165AS, you have to wire in an amplifier and that's a lot more complex and damages factory wiring. This install, I cut
none of the factory wires. Only damage I did was each time you remove that door panel you probably loosen the pop in fasteners a tiny bit.