pop sound when I turn on a/m head unit

An82Mustang · January 16th, 2010, 05:36 PM

I have an 00 gt... has the Mach 460 stereo and a Mach 1000 upgrade. I removed the mach cd player and cassette decks and did a DD conversion. I have installed a kenwood DD h/u and every time I turn it on there is a chirp / pop sound... ( I can unplud the speakers from the h/u and it still makes that sound when the amps power up... ) Would that be a bad highs amp?? (The one under the radio??) Thanks... (I have the metra kit that does not have RCA hookups... the one with the RCA hookups would not plug into my wiring harness... ) I bought the kit from Best Buy... Should it have had RCA Connectorson the )) kit... (They gave me an 01-04 kit the first time and it ould not plug in to the speaker harness...) Thanks in advance...

wraitherx · January 16th, 2010, 06:10 PM

the one that you are looking for is the 70-5510. it is the same exact harness except that it uses RCA connections to control the amps. the problem that you are having is that the amps are still sending a "residual" signal back to the h/u which will then send it through the speakers after shut down. you can either put a switch inline or you can just go back to best buy or radioshack and get a 1 amp diode and place it inline with the remote turn on wire. it will be a little black thing that has a stripe on it (cathode), what this does is to allow direction one way and not back. make sure that the cathode faces away from the source (radio). this will solve your problem

An82Mustang · January 16th, 2010, 06:29 PM

Thanks... after installing the diode should I also change the speaker harness to one with the RCA connector?? I was also going to try and hook the mach amps to the sub out on my h/u. Thanks...

wraitherx · January 16th, 2010, 06:41 PM

you can get the rca connectors if you want. on 94-00 they are supposed to plug into the front/rear RCA pre-outs on the back of the deck, not the sub out like the 01-up.

An82Mustang · January 17th, 2010, 01:27 AM

Sry... I ment the amps for the mach 1000 not the 460 amps... I just bought the connector with the rca hookups on ebay so I should have them ina couple of days... thanks..

wraitherx · January 17th, 2010, 02:30 AM

no problem

An82Mustang · January 26th, 2010, 08:03 AM

Ok, I just got in the correct wiring kit... Going to try and get it in this week... (I tried the diode in the remote wire and no luck... it still pops...) But I am going to try it again with the new wiring harness... I'll do pics and a write up...

RyanGT · January 30th, 2010, 08:29 PM

Mine is doing this also. Tried the diode and still does it (and have the rca harness). Any other ideas?

An82Mustang · January 30th, 2010, 09:49 PM

No, No ideas yet...

RyanGT · January 30th, 2010, 09:53 PM

diodes for the rca harness? That would be a pain lol. Hopefully wraith has another idea! He usually does hehe

An82Mustang · February 2nd, 2010, 08:15 AM

Wouldn't think diodes in the rca... (Mine does the pop with the speaker / rca harness disconnected... )

RyanGT · February 2nd, 2010, 02:58 PM

Well the rca is to amp, and amp goes to speakers. Im just throwing out ideas, if your's does it without rca that means its the amp being fubar'd and one of the wires is giving feedback to speakers... Hopefully wraith comes back

hes been mia since weekend!

XTCNAGT · February 2nd, 2010, 03:05 PM

I would really like a fix to this as well.

I get that pop with my new head unit and it scares the shit out of anyone that gets in the car.

wraitherx · February 3rd, 2010, 04:26 PM

sorry guys that i havent been on in a bit, my laptop with all my electronic stuff took a crash on me so I have to wait until i get it back and I am resorted to answering through my work computer. I have to see what else will work as ive always used diodes with no problems but there may be something new with the radio's now or something... I will get it figured out for you guys here soon, so if you can please be a little patient or if you find something that may work just let me know and I can try and help you out.

An82Mustang · February 3rd, 2010, 07:53 PM

Sure thing... If it helps it makes the noise regardless of weather or not th espeaker harness is plugged in...

RyanGT · February 3rd, 2010, 08:48 PM

Np wraith

Also makes the noise regardless of volume level (and same loudness). I also tried using the fade to put it all to the rear, and the front's still make pop noise on start up.

wraitherx · February 5th, 2010, 11:49 AM

just want to make sure that everything is covered. You guys did make sure to connect those Black/White wires (amp ground) to ground correct? Also I may have a fix for the problems but need to know what exact head units you have so that I can get with my buddy about it. He has also noticed this as more of an occurence on alot of the newer headunits and has effectively eliminated the problem so I will be getting with him to see what we have to do to alleviate this problem.

XTCNAGT · February 5th, 2010, 12:23 PM

Pioneer AVH-P4100DVD is mine.

Thanks man!

RyanGT · February 5th, 2010, 03:48 PM

alpine cda-105. Ground harness? Like the 2 wires that hooked into the back of both decks? I thought that was the ground for the deck cases. Or was that to ground the amp? Cause all i did was splice the wires for the car harness that fits into the radio one.

An82Mustang · February 6th, 2010, 09:52 AM

I have a Kenwood DDX-514 .. and did not notice any extra ground wires.....??

January 16th, 2010, 05:36 PM	#1
An82Mustang Regular 2000 Kona Blue GT Vert Join Date: Sep 2009 Location: Gainesville, Fl Posts: 197 iTrader: 0 reviews	pop sound when I turn on a/m head unit I have an 00 gt... has the Mach 460 stereo and a Mach 1000 upgrade. I removed the mach cd player and cassette decks and did a DD conversion. I have installed a kenwood DD h/u and every time I turn it on there is a chirp / pop sound... ( I can unplud the speakers from the h/u and it still makes that sound when the amps power up... ) Would that be a bad highs amp?? (The one under the radio??) Thanks... (I have the metra kit that does not have RCA hookups... the one with the RCA hookups would not plug into my wiring harness... ) I bought the kit from Best Buy... Should it have had RCA Connectorson the )) kit... (They gave me an 01-04 kit the first time and it ould not plug in to the speaker harness...) Thanks in advance... __________________

January 16th, 2010, 06:10 PM	#2
wraitherx Moderator '99 SVT Cobra Join Date: Nov 2006 Location: Virginia Beach, VA Posts: 9,567 iTrader: 11 reviews	the one that you are looking for is the 70-5510. it is the same exact harness except that it uses RCA connections to control the amps. the problem that you are having is that the amps are still sending a "residual" signal back to the h/u which will then send it through the speakers after shut down. you can either put a switch inline or you can just go back to best buy or radioshack and get a 1 amp diode and place it inline with the remote turn on wire. it will be a little black thing that has a stripe on it (cathode), what this does is to allow direction one way and not back. make sure that the cathode faces away from the source (radio). this will solve your problem __________________ BUILD 2 IN PROGRESS

January 16th, 2010, 06:29 PM	#3
An82Mustang Regular 2000 Kona Blue GT Vert Join Date: Sep 2009 Location: Gainesville, Fl Posts: 197 iTrader: 0 reviews	Thanks... after installing the diode should I also change the speaker harness to one with the RCA connector?? I was also going to try and hook the mach amps to the sub out on my h/u. Thanks... __________________

January 16th, 2010, 06:41 PM	#4
wraitherx Moderator '99 SVT Cobra Join Date: Nov 2006 Location: Virginia Beach, VA Posts: 9,567 iTrader: 11 reviews	you can get the rca connectors if you want. on 94-00 they are supposed to plug into the front/rear RCA pre-outs on the back of the deck, not the sub out like the 01-up. __________________ BUILD 2 IN PROGRESS

January 17th, 2010, 01:27 AM	#5
An82Mustang Regular 2000 Kona Blue GT Vert Join Date: Sep 2009 Location: Gainesville, Fl Posts: 197 iTrader: 0 reviews	Sry... I ment the amps for the mach 1000 not the 460 amps... I just bought the connector with the rca hookups on ebay so I should have them ina couple of days... thanks.. __________________

January 17th, 2010, 02:30 AM	#6
wraitherx Moderator '99 SVT Cobra Join Date: Nov 2006 Location: Virginia Beach, VA Posts: 9,567 iTrader: 11 reviews	no problem __________________ BUILD 2 IN PROGRESS

January 26th, 2010, 08:03 AM	#7
An82Mustang Regular 2000 Kona Blue GT Vert Join Date: Sep 2009 Location: Gainesville, Fl Posts: 197 iTrader: 0 reviews	Ok, I just got in the correct wiring kit... Going to try and get it in this week... (I tried the diode in the remote wire and no luck... it still pops...) But I am going to try it again with the new wiring harness... I'll do pics and a write up... __________________

January 30th, 2010, 08:29 PM	#8
RyanGT MM Fanatic 2000 GT Join Date: Dec 2006 Location: Lynnwood, Washington Posts: 4,258 iTrader: 4 reviews	Mine is doing this also. Tried the diode and still does it (and have the rca harness). Any other ideas? __________________ 2000 Black convertible GT: KB 15psi, and other goodies... 1971 Datsun 240 z: Header and rebuilt motor. (The DD)

January 30th, 2010, 09:49 PM	#9
An82Mustang Regular 2000 Kona Blue GT Vert Join Date: Sep 2009 Location: Gainesville, Fl Posts: 197 iTrader: 0 reviews	No, No ideas yet... __________________

January 30th, 2010, 09:53 PM	#10
RyanGT MM Fanatic 2000 GT Join Date: Dec 2006 Location: Lynnwood, Washington Posts: 4,258 iTrader: 4 reviews	diodes for the rca harness? That would be a pain lol. Hopefully wraith has another idea! He usually does hehe __________________ 2000 Black convertible GT: KB 15psi, and other goodies... 1971 Datsun 240 z: Header and rebuilt motor. (The DD)

February 2nd, 2010, 08:15 AM	#11
An82Mustang Regular 2000 Kona Blue GT Vert Join Date: Sep 2009 Location: Gainesville, Fl Posts: 197 iTrader: 0 reviews	Wouldn't think diodes in the rca... (Mine does the pop with the speaker / rca harness disconnected... ) __________________

February 2nd, 2010, 02:58 PM	#12
RyanGT MM Fanatic 2000 GT Join Date: Dec 2006 Location: Lynnwood, Washington Posts: 4,258 iTrader: 4 reviews	Well the rca is to amp, and amp goes to speakers. Im just throwing out ideas, if your's does it without rca that means its the amp being fubar'd and one of the wires is giving feedback to speakers... Hopefully wraith comes back hes been mia since weekend! __________________ 2000 Black convertible GT: KB 15psi, and other goodies... 1971 Datsun 240 z: Header and rebuilt motor. (The DD)

February 3rd, 2010, 04:26 PM	#14
wraitherx Moderator '99 SVT Cobra Join Date: Nov 2006 Location: Virginia Beach, VA Posts: 9,567 iTrader: 11 reviews	sorry guys that i havent been on in a bit, my laptop with all my electronic stuff took a crash on me so I have to wait until i get it back and I am resorted to answering through my work computer. I have to see what else will work as ive always used diodes with no problems but there may be something new with the radio's now or something... I will get it figured out for you guys here soon, so if you can please be a little patient or if you find something that may work just let me know and I can try and help you out. __________________ BUILD 2 IN PROGRESS

February 3rd, 2010, 07:53 PM	#15
An82Mustang Regular 2000 Kona Blue GT Vert Join Date: Sep 2009 Location: Gainesville, Fl Posts: 197 iTrader: 0 reviews	Sure thing... If it helps it makes the noise regardless of weather or not th espeaker harness is plugged in... __________________

February 3rd, 2010, 08:48 PM	#16
RyanGT MM Fanatic 2000 GT Join Date: Dec 2006 Location: Lynnwood, Washington Posts: 4,258 iTrader: 4 reviews	Np wraith Also makes the noise regardless of volume level (and same loudness). I also tried using the fade to put it all to the rear, and the front's still make pop noise on start up. __________________ 2000 Black convertible GT: KB 15psi, and other goodies... 1971 Datsun 240 z: Header and rebuilt motor. (The DD)

February 5th, 2010, 11:49 AM	#17
wraitherx Moderator '99 SVT Cobra Join Date: Nov 2006 Location: Virginia Beach, VA Posts: 9,567 iTrader: 11 reviews	just want to make sure that everything is covered. You guys did make sure to connect those Black/White wires (amp ground) to ground correct? Also I may have a fix for the problems but need to know what exact head units you have so that I can get with my buddy about it. He has also noticed this as more of an occurence on alot of the newer headunits and has effectively eliminated the problem so I will be getting with him to see what we have to do to alleviate this problem. __________________ BUILD 2 IN PROGRESS

February 5th, 2010, 03:48 PM	#19
RyanGT MM Fanatic 2000 GT Join Date: Dec 2006 Location: Lynnwood, Washington Posts: 4,258 iTrader: 4 reviews	alpine cda-105. Ground harness? Like the 2 wires that hooked into the back of both decks? I thought that was the ground for the deck cases. Or was that to ground the amp? Cause all i did was splice the wires for the car harness that fits into the radio one. __________________ 2000 Black convertible GT: KB 15psi, and other goodies... 1971 Datsun 240 z: Header and rebuilt motor. (The DD)

February 6th, 2010, 09:52 AM	#20
An82Mustang Regular 2000 Kona Blue GT Vert Join Date: Sep 2009 Location: Gainesville, Fl Posts: 197 iTrader: 0 reviews	I have a Kenwood DDX-514 .. and did not notice any extra ground wires.....?? __________________

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