I recently discovered this: Kicker Subaru Tweeter Upgrade for 4runner?

Looking at pictures of the subaru kickers in question compared to the factory tweeters in non-jbl 4th gens, betray key similarities and differences.

5th gen tweeter connector is attached to the tweeter, 4th gen is on a wire lead.

Both tweeters appear to have a similarly-sized capacitor in approximately the same place.

Anyone think there might be something to this for the 4th gens? I'm thinking possible depth issues (mostly do to the plastic cup underneath the kicker tweeter, and the positioning of the connector), and I cant tell if the connectors are at all similar, but I think it might be just a kind of cut-and solder to have plug-in tweeter replacements.

Amazon listing for the subaru part: Amazon.com: Genuine Subaru H631SFJ101 Tweeter Kit: Automotive

i think that kenwood might be a good budget friendly upgrade

KFC-XP6902C | Speakers | Car Entertainment | KENWOOD USA

how it sounds, im not sure on how they sound since i run them $1000 plus speakers, but a good youtube video is from fivestarcarstereo

As an update, I have these working in my 4runner!

unfortunately, they are not plug and play. the plugs are different. With the subaru wiring being covered in some goop, I couldnt tear them apart and re-pin or anything. I ended up cutting off the harness/capacitor from the OEM parts, and connecting them to the +/- connected to the tweeter of the subaru assembly.

So it;s probably not worth it, $100 is more than you would need to get other tweeters and tacotunes adapters, then wire them up the same way, but I'm happy about how it turned out anyway