5th Gen Dash Speakers - Bass-Blocker or Resistor Inline? - DS18 Tweeter Install

I recently purchased a set of the DS-18 "Subaru and Toyota" tweeters. These are substantially similar to the Kicker version.

I got a really good deal on them from DS-18 via ebay ($51 and free shipping) plus they threw in 2 of those 4-pin plug to 2-wire adapters, which I didn't need in my case but may be of use in the future.

I have installed these tweeters, which takes about 10 minutes in total for both of them. The DS-18's have a female 4-pin clip built onto the back (like the stock 2-3/4" speakers) so it literally is as simple as disconnecting the 4-pin plug from the 2-3/4" and plugging it into the back of the tweeter. The hardest part of all was apparently Toyota tightens the factory2-3/4" speaker mounting bolts to the mounting adapter using some ridiculous torque. The bracket is so flimsy that I nearly bend it while trying to remove them.

Anyway, I wanted some clarification on the wiring system (I have a 2021 ORP). Is there some sort of bass blocker or resistor inline (downstream of the split that carries on to the front door speakers)? I looked on a lot of Tacoma forums as this is a popular mod and no one else bothered with any kind of x-over or bass-blocker/resistor. Likewise, is there something similar on the door speaker to clip the highs? Not as much of an issue with the door midwoofer.

I really like the improvement in sound quality with these tweeters (especially for the price and the minimal time investment).

 

I doubt there's any filtering especially if there is no subwoofer. You probably need to install individually to your needs. If you are going to the trouble of removing the panels. Might as well put some sound deadening at the same time.

https://www.crutchfield.com/shopsearch/in_line_low_pass_filter.html

 

Well...I would be surprised if the factory 2-3/4" were meant to be full range and that there was not some sort of high-pass to clip the lows and protect the 2-3/4" driver.