OEM tweeter wiring on UK Yaris - Toyota Yaris Forums

Paul Evans · 04-23-2012, 04:31 AM

And in case anyone else wants to know, I have now answered my own question, via a circuit diagram from a "usually reliable source".
In a 2009 UK Yaris with the 6 speaker setup (2 front, 2 back and 2 tweeters) the front door speakers and the front tweeters on each side are wired in parallel. The wiring seems to go from the HU to the tweeters on each side and then down into the doors.

This means -
- that the tweeters at least must have a cap mounted on each tweeter to roll off the low frequencies
- that the front door speakers may have a choke mounted on the back to filter out the high frequencies (different part number to the normal 4 door speakers)
- that putting component speakers with crossovers into such a system is going to be tricky using the existing wiring!

Not rushing into action now, having a bit of a think!

Paul

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04-23-2012, 04:31 AM	#2
Paul Evans Drives: Yaris SR 1.33 Join Date: Sep 2011 Location: UK Posts: 2	And in case anyone else wants to know, I have now answered my own question, via a circuit diagram from a "usually reliable source". In a 2009 UK Yaris with the 6 speaker setup (2 front, 2 back and 2 tweeters) the front door speakers and the front tweeters on each side are wired in parallel. The wiring seems to go from the HU to the tweeters on each side and then down into the doors. This means - - that the tweeters at least must have a cap mounted on each tweeter to roll off the low frequencies - that the front door speakers may have a choke mounted on the back to filter out the high frequencies (different part number to the normal 4 door speakers) - that putting component speakers with crossovers into such a system is going to be tricky using the existing wiring! Not rushing into action now, having a bit of a think! Paul