My 2013 Taco has a little box in the speaker leads I found when I was putting in a glove box light switch. It's mounted right on the back of the glove box cover. Looking up the part number it is listed as a "Radio Condenser". Opening up the box, it is just two mid sized capacitors that bridge some of the speaker wires. it looks like all 8 speaker wires go in and out of the connector, some pass straight through.
I assume this is a noise suppression device between the head and the speakers, but now I'm wondering if it is the "crossover" for the factory tweeters?
I don't have the audio wiring diagram for the '12-13, I would love a link if it's handy.
I'm about to replace my OEM 6x9's and was going to retain the tweeters if possible so I am also wondering if I should bypass the "condenser" or leave it in place?