After market radio

[Porzingis213]

I am planning to install a aftermarket stereo on my 2000 Toyota Land Cruiser. I have a few questions. Would the easiest way to do this be using a harness that uses the oem amp? Also I have read that the stereo I am going to install has a built in amplifier that supplies 45 amps to each speaker. Would this be much of an upgrade to the original amp and would it be worth losing the sub. Thanks

 

[ramangain]

All of your answers are in many threads already. We invite you to take advantage of the overwhelmingly useful (and fun!) search function.

Welcome to Mud.

 

[gregnash]

I am planning to install a aftermarket stereo on my 2000 Toyota Land Cruiser. I have a few questions. Would the easiest way to do this be using a harness that uses the oem amp? Also I have read that the stereo I am going to install has a built in amplifier that supplies 45 amps to each speaker. Would this be much of an upgrade to the original amp and would it be worth losing the sub. Thanks

Quick answer... yes that is the easiest way. BUT there is a caveat to it.
For whatever reason, the stock amp tends to supply a ground feedback loop that can be heard. This is a semi-loud hiss through the speakers when the stereo is on. Look up the Amp By-pass threads and I would highly recommend doing that if you are not planning to use an amp, however it does get rid of the stock sub (which isn't much in the first place) when doing so.

There is TONS of info in the FAQ and use the search bar and you will see what you have in store for you.

 

[Porzingis213]

Quick answer... yes that is the easiest way. BUT there is a caveat to it.
For whatever reason, the stock amp tends to supply a ground feedback loop that can be heard. This is a semi-loud hiss through the speakers when the stereo is on. Look up the Amp By-pass threads and I would highly recommend doing that if you are not planning to use an amp, however it does get rid of the stock sub (which isn't much in the first place) when doing so.

There is TONS of info in the FAQ and use the search bar and you will see what you have in store for you.

Thanks for the input, will check other threads too.

 

[Porzingis213]

All of your answers are in many threads already. We invite you to take advantage of the overwhelmingly useful (and fun!) search function.

Welcome to Mud.

Will check it out, thanks.

 

[pdxlc]

I just did this and was able to get rid of the hiss, but not the power on/off pop yet using the factory amp. I have the wiring harness adapter you need for either scenario. Let me know if you're interested, I'm located just south of Portland.

 

[gregnash]

I just did this and was able to get rid of the hiss, but not the power on/off pop yet using the factory amp. I have the wiring harness adapter you need for either scenario. Let me know if you're interested, I'm located just south of Portland.

Are you talking the Metra 70-8112 adapter? And how did you get rid of the hiss? I ran a separate ground line but didn't seem to do anything.

 

[pdxlc]

I used Metra 70-8113. Tied both grounds from Metra wiring adapter, ground from headunit, ground from all 4 RCA outputs all to a new chassis ground. RCA output ground can be achieved by wrapping exposed wire around RCA terminals on back of headunit and tying into other grounds.

Haven't figured out the power on/off pop yet though. If someone has, please tell me!

 

[Porzingis213]

I just did this and was able to get rid of the hiss, but not the power on/off pop yet using the factory amp. I have the wiring harness adapter you need for either scenario. Let me know if you're interested, I'm located just south of Portland.

Great to know. I think I’m leaning more towards a amp bypass.

 

[Nightbrew]

I knew this would happen, I need help. I am trying to ask here as to not start a new thread. I am trying to install a Sony xav-ax1000 along with a metra 70-8116 to bypass factory amp. I currently can not get the unit to power on. I have tried tying the head unit ground to chassis and tried by tying in to ground from harness behind the unit. I have a lot of extra wires that did not seem to need to connected at the time. I have a feeling I’m needing either the orange wire on the unit and/or the blue wire from the harness side connected to something. Any idea what I am missing. Thanks and Merry Christmas.

 

[Porzingis213]

I knew this would happen, I need help. I am trying to ask here as to not start a new thread. I am trying to install a Sony xav-ax1000 along with a metra 70-8116 to bypass factory amp. I currently can not get the unit to power on. I have tried tying the head unit ground to chassis and tried by tying in to ground from harness behind the unit. I have a lot of extra wires that did not seem to need to connected at the time. I have a feeling I’m needing either the orange wire on the unit and/or the blue wire from the harness side connected to something. Any idea what I am missing. Thanks and Merry Christmas.View attachment 2874765View attachment 2874766View attachment 2874767

I remember having the same problem. You have to connect a few wires together at the amp to get power. And have everything unplugged at amp or it won’t turn off even when cars off. . I’ve included a picture with the solution to your problem I believe.

 

[Porzingis213]

I remember having the same problem. You have to connect a few wires together at the amp to get power. And have everything unplugged at amp or it won’t turn off even when cars off. . I’ve included a picture with the solution to your problem I believe.

View attachment 2874955

 

[Nightbrew]

I remember having the same problem. You have to connect a few wires together at the amp to get power. And have everything unplugged at amp or it won’t turn off even when cars off. . I’ve included a picture with the solution to your problem I believe.

View attachment 2874955

Thanks much. So you are saying even with the metra harness I still need to go through and make these connections/disconnects? I guess I just assumed the metra harness was plug and play. And based on your info/pic the smaller connector S7, remains unplugged, correct?

 

[Porzingis213]

Thanks much. So you are saying even with the metra harness I still need to go through and make these connections/disconnects? I guess I just assumed the metra harness was plug and play. And based on your info/pic the smaller connector S7, remains unplugged, correct?

Yes you are correct. And yes it’s a shame it’s not plug and play I thought the same.

 

[Nightbrew]

Yes you are correct. And yes it’s a shame it’s not plug and play I thought the same.

Thanks again. I have some work to do. What did you do for head unit grounding? Tie in to the harness or run a longer chassis ground?

 

[Nightbrew]

Also, seeing how I am trying not to run an amp do I still remove pin1 on S7? I would think it is not necessary either way.

 

[Nightbrew]

@Porzingis213 Thanks for the help. I am functional now. I just need to tidy up the wiring harness and get it all put back together.

 

[Porzingis213]

@Porzingis213 Thanks for the help. I am functional now. I just need to tidy up the wiring harness and get it all put back together.

That’s awesome glad I could help!

 

[DocMulc]

I worked with a local installer (Asheville, NC), who figured it out. His name is Steve. He goes by Stereoman. He blogged about it on his Facebook page:



Land Cruiser Partial Bypass

Today I completed one of my biggest car stereo jobs of the year, and the result far exceeded expectations! My customer brought me a 1998 Toyota Land Cruiser with the premium sound system in it. He wanted a complete upgrade: Apple Car Play stereo, new speakers all around, satellite radio, and backup camera.

Just one catch. According to the various Land Cruiser blogs I consulted, integrating the new stereo to the factory amp was problematic. Due to an oddly designed ground loop, if the new stereo’s line level output was connected to the factory amp’s input wiring, it would generate unacceptable noise levels. The amp had to be bypassed. I suggested, and my customer agreed, to insert Pioneer’s tiny GMD1004 amplifier into the bypass to provide him with the extra volume he craved.

But wait! What about the factory subwoofer? If I bypassed the factory amp, the subwoofer would no longer function. Would my customer have to buy another amp? or do without the low bass? Or was there another solution? It seemed to me there was! And so I set about performing a partial bypass.

It’s commonly believed that all aftermarket stereos have four output channels, but that’s not quite true. Some have six, some eight, some ten! Only four are powered, true, but line level outputs can be used at the same time as speaker level outputs, with no harmful effects. And so I set about utilizing eight of the new stereo’s ten outputs to feed both the factory amp and Pioneer’s tiny GMD1004.

When I fired it all up and made some adjustments to the stereo, the results were amazing! I turned on the stereo’s high pass filters and set them to 100hz front and rear, and then adjusted the equalizer to reduce the 6khz and 12khz bands by 6db. I tested with Joe Bonamassa’s “Mountain Climbing” and I had to admit, it sounded almost as good as my own car! It was like magic!

StereoMan » Home

ncstereoman.com

 

[Nightbrew]

Well I missed something. I no longer have functionality of the manual antenna switch. I would like to have it back. I am guessing that it has to do with the amp bypass and not the head unit, but of course I don’t know. I did some searching last night and this morning but I couldn’t come up with anything. Any help is appreciated.