Help! I Tried to Use the PAC Harness to Bypass the Stock JBL Amp and it Caught on Fire...

Looking for advice from fellow taco owners that have upgraded the sound system on the 2nd gen Tacoma. I am gutting the entire sound system on my 06 doublecab taco. I already replaced the head unit and speakers with aftermarket ones, and was about to add an amp using the PAC APH-TY03 harness. I had both amps plugged in (stock JBL + Aftermarket), and couldn't hear any sound coming through... minutes later the JBL amp started smoking and probably died.

I thought I wired everything correctly. Had a fused power supply from the battery coming to the new amp + remote turn on and a good grounding wire + RCAs... Is my setup wrong? Do I need a different harness?

 

Not everyone can afford $2000 for audio

 

It's not rocket science! I've done it on three of my cars. Most people on this forum are open to modifying their trucks themselves.

 

All you need is a multimeter and the pinouts on the components. That will tell you where you went wrong.

 

It may not be rocket science but whatever it is, you can’t do it if it caught on fire.

 

there's not enough info here to make any determination.

what amp? how was it wired? where was it wired in? that harness is to entirely replace the factory amp, why was the factory amp even installed? is the pac amp pro 4 interface also being used as the product page indicates?

https://catalog.pac-audio.com/catalog/amplifier-integration-harness/aph-ty03

https://catalog.pac-audio.com/catal...rfaces/ap4-ty11?search_query=ap4-ty&results=2

via the wording, it sounds like your new amp installation is done appropriately(no pictures, can't say it's done right, i've seen all those parts used, and still done up as a fire risk).

 

Sounds like both amps were wired to each other somehow, and not wired to the speakers

 

Connected the plugs and wires as shown.
Example picture of my JBL amp below

 

Their installation instructions say "2. The Gray 20-pin connector from the APH-TY03 must be connected to the factory amplifier when using a PAC AmpPRO Interface." Which makes me think that I was wiring everything correctly.

It sounds like PAC have technical support available tomorrow so I'll give them a call

 

Destin, I saw one of the threads you were involved in a couple of years ago and I'm surprised you're still so active on this site.
https://www.tacomaworld.com/threads/2nd-gen-jbl-amp-system-replacement.701462/

In this thread you recommended the -PAC APH-TY01 harness, which I bought but did not fit my truck's wiring harness. I went with the APH-TY03 instead, but not finding the results that I want.

 

So let’s start with the big question

what are you doing? You mentioned you’re gutting the jbl system, but then you said the jbl amp was still connected. Any reason why?

 

what are my options? Does that amp not need to stay connected if I connect the harness to the new factory amp? Instructions seem to say that it needs to stay connected.

 

If you have an aftermarket head unit, then no, the jbl amp should not stay connected at all unless you are still using it to power a speaker.

the PAC harness is solely for allowing connection of your aftermarket amp to the factory wiring without any cutting.

 

Alright I'll try that out today. I appreciate your responsiveness!

 

You’d have

> Head unit
> RCA cables back to amp
> Amp
> PAC harness connected to amp outputs

And this will carry your speaker signal through the factory wiring to each speaker in the doors.

 

but it bears repeating that destin, or anyone else for that matter, doesn't really have enough information to know what gear you're using, or what connections you have available. some assumptions are made on your aftermarket gear from insinuations, but that doesn't mean that any of it is correct for the gear that exists in the truck, or what you're trying to do. i've seen the same 'no audio' problem, where people try connecting a LOC to a digital head unit output to gain an rca connection, but fail to understand that an rca input is an analog signal, and therefore, the digital connection will result in a no audio output 'problem'.

i can't offer any additional help, as you haven't offered any additional information on your specific setup other than a supplied wiring diagram with the harness you purchased. that still leaves plenty of room for problems in your wiring connections, methods, equipment, or colors connected.

 

@soundman98 Yep it was sort of a shot in the dark, but I was mainly wondering if I was using the PAC harness appropriately, which Destin corrected me on.

My audio issues seem to be solved once I disconnected the JBL amp entirely. I had to buy a new aftermarket amp since the last one was having issues with some of the channels.

If it helps, I am using a Joying HU, pioneer 4 channel amp, APH-TY03 Pac harness, and all the other regular wiring to make this happen. I'm going to add another amp and sub a bit later, which shouldn't be too hard since I've already done the wiring.