anyone have some kind of map of how the tsx audio wired? amp to speakers?

 

i can post it later tonight

 

thanks.

 

The diagram is here. https://acurazine.com/forums/showpos...75&postcount=3

The HU has four preamp signals to the OEM amp - F stereo and R stereo. These are in the smaller of the two connectors. The larger connector has 8 speaker outputs.

The OE amp is an 8-channel amp - 2 4-channel amp IC's identical to the kind in HU's. There is a xover board inside that has high-pass for the F channels and the R doors, and a mono low-pass for the by-nines. The tweeters only have series caps for xovers. The door speaks have no low-pass filters, and they try to play highs.

 

oops.. i guess elduderino beat me to it hehe.. well here's another one if you want to see it

 

Thanks, this is a much better diagram for seeing the whole system.

 

thanks alot for that diagram.
is the A9 the remote?

 

At the amp, A9 is ACC, B7 Yel/Grn is remote. It soews it going to the window coil, but that's the R window antenna amplifier coil, and the HU throws 12V+ to that and the amp to turn them both on. YOu can add at least one more amp to the circuit with no issues.

 

sorry, im a newbie at eletronics.
so do i tap the b7 (yellow/green) line for remote?

 

Yes. DO NOT SHORT IT TO GROUND. You don't want to pay for a radio repair.

 

sorry again, but what do you mean by "short it to ground?"

 

Ground is anything metal that touches the chassis of the car, which is connected to the - terminal of the battery by a big cable.

Touching + wires to chassis is called a "short circuit". When you have a short, all the electrons in the battery try to make the trip from one terminal to the other AT ONE TIME. Things get hot, magic smoke comes out, hilarity ensues.

 

ahhh, Thank you very much. that will help alot. Thanks again.

 

Another question for those "in the know" on this stuff.

If I were to tap into the b7 (yellow/green) wire for an amp remote turn on, AND attached that same wire to the coil of a 12v relay (to turn on some other stuff) would that be considered safe -- or expect smoke, burning electrical smell and expensive repair??

 

We don't know the current rating of this particular output transistor, so we don't know.

But I bet that if you cut the wire, took the radio side of it and wired it to a 12V relay, and made that relay send 12V, and made the relay OP power the amp turn on, the new amp turn on, and whatever else you wanted, you'd be fine.

If you're really worried about it, the safe bet is a low voltage module like the Pac TR7. Uses a transistor, very low current draw.

 

That is an excellent idea. I was not aware of that option. After searching around a bit I found the PAC TR4 which looks like a less complicated version of the same. Essentially an electronic relay (I think). Cool. And thanks, (again), elduderino.

 

NP. BTW, since that output has turned on two amps and the window antenna amp with no problem, it would IMHO turn on one relay. But hey, better safe than sorry.

 

what if you want to run more than one amp. would the B7 Wire be able to turn on the amps and the powered antena properly?

 

I have used the RTO to turn on the OEM amp AND the FM amp AND an aftermarket amp...so two aftermarket amps should be fine, I would think. Same difference.

But if you're worried, use a relay or a low current trigger like the PAC TR7.