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Related Car Electronics Questions
I have an alpine cde-143bt when its on radio mode i can hear
i have an alpine cde-143bt when its on radio mode i can hear everything good but when i switch to bt or usb i only get sound out of my sub box … read more
Louie
Louie
Car Electronics Technician
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My right front has only trebble and right rear sounds .I
My right front has only trebble and right rear sounds blown.I think back wires touching when loading trunk.left side works fine ? … read more
Louie
Louie
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I have a Alpine 133 car radio and I get no sound. I did
I have a Alpine 133 car radio and I get no sound. I did replace a dead battery yesterday which may have caused the problem. What should I check. I did hear a poppng in my right speaker which sounded l… read more
Mechanic01
Mechanic01
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Music stickin alpine radio in land rover, just a new usb
have tried everything it said in book but keeps coming up error … read more
ElectronicsPete
ElectronicsPete
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My alpine CDE-1245XM keeps dropping the xm signal when I shut
My alpine CDE-1245XM keeps dropping the xm signal when I shut off the vehicle. When the refresh signal is sent it will work as long as the vehicle is running. It still receives the xm channel 1, and i… read more
Louie
Louie
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I have a 1985 corvette and I am installing cde-sxm145bt head
I have a 1985 corvette and I am installing cde-sxm145bt head unit and KTP-445U.ANY AND ALL WIRING HELP WOULD BE APPRECIATED.Both are Alpine brand.… read more
Steve G.
Steve G.
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I have a alpine HU CDE 1245 with a KTP 445 but when I plug
I have a alpine HU CDE 1245 with a KTP 445 but when I plug up the 445 unit i get no sound got sound without it. is it a question of power supply to the amp and does this unit have to be connected to t… read more
Carl L
Carl L
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Vocational, Technical or Trade Scho
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I have a Alpine CDE SXM145BT and a Alpine KTP-445A amp that
I have a Alpine CDE SXM145BT and a Alpine KTP-445A amp that I want to install in my 1965 Pontiac GTO. I plan on installing the head unit in the glove box with the amp on the backside of the dash. Sinc… read more
bluextc89
bluextc89
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Vocational, Technical or Trade Scho
6,556 satisfied customers
ALpine KTP-445: Hello. I saw your post from 2010 on the Alpine
Hello. I saw your post from 2010 on the Alpine KTP-445 amp wiring. I am installing this amp in my 2010 Jeep Wrangler, with a Pioneer AVHX5500BHS head unit and am unclear re: how to wire some of the co… read more
Don - Mo Lurch
Don - Mo Lurch
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I had my Alpine amp KTP 445 in my beetle, but when I sold it
I had my Alpine amp KTP 445 in my beetle, but when I sold it I was in a hurry to get the amp out to keep. The harness connectors had to be cut off. Now, I'm trying to install it in my 2004 Dodge Dakot… read more
stereoaz
stereoaz
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Is alpine cde-121 compatible with power pack ktp-445 (plug
Is alpine cde-121 compatible with power pack ktp-445 (plug & play)? Some guy at crutchfield told me no," it did not have the right harness " but everything else I read on the web seem to say otherwise… read more
stereoaz
stereoaz
head repair technician-install manager
Associate Degree
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Why did all functions except the tuner stop working on my alpine
Why did all functions except the tuner stop working on my alpine CDE-133BT after i had the amplifier installed?… read more
Aric
Aric
Car Electronics Technician
Run A/V and repair business for over
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I just purchased a new Alpine cde-134HD for my car. I am also
I just purchased a new Alpine cde-134HD for my car. I am also going to get new speakers Jvc-drvn 3-ways for the front Pioneer-A series 3 ways for the rear. Will I need an amp to run this or will it be… read more
Don - Mo Lurch
Don - Mo Lurch
Owner
Vocational, Technical or Trade Scho
11,614 satisfied customers
I have an Alpine CDE 133BT Head, 4x 6" Speakers for front and
I have an Alpine CDE 133BT Head, 4x 6" Speakers for front and rear. All working well. I also have a Kicker Basestation Powered Subwoofer. The head has RCA output for a sub but the sub has a block (pow… read more
Aric
Aric
Car Electronics Technician
Run A/V and repair business for over
504 satisfied customers
After installing Alpine KTP-445u in my Subaru STI, my Kicker
After installing Alpine KTP-445u in my Subaru STI, my Kicker self powered sub will not turn on. Any ideas? It was working fine at first after install but I had alternator noise so I installed the supp… read more
Louie
Louie
Car Electronics Technician
633 satisfied customers
Got an alpine ktp-445 plug and play amp with compatible head
Got an alpine ktp-445 plug and play amp with compatible head unit. The problem is the ktp pops when powered on. I installed a stinger pop eliminator between the h/u and amp and that didn't work. Next … read more
Josh C
Josh C
Car Electronics Technician
Bachelor's Degree
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I have an Alpine KTP 445 head unit amp that I am transfering
I have an Alpine KTP 445 head unit amp that I am transfering from one vehicle to another. I lost the plug that connects the car wiring (male) to ther input on the unit (female) and cant find the (fema… read more
Aric
Aric
Car Electronics Technician
Run A/V and repair business for over
504 satisfied customers
I need a wiring diagram for an alpine ktp-445 amp to a non
I need a wiring diagram for an alpine ktp-445 amp to a non alpine stereo. store did not have a wiring adapter.… read more
bluextc89
bluextc89
Small Business Owner
Vocational, Technical or Trade Scho
6,556 satisfied customers
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Meet the Experts:

Greg A.

Greg A.

Engineer

434 satisfied customers

Working with Electronics & Cars for 25+ years

Josh C

Josh C

Car Electronics Technician

194 satisfied customers

MECP Certified 1st Class since 1993, 18 years in the Professional car audio industry. IASCA winner.

Neil

Neil

Engineer

108 satisfied customers

NZCE Electronics and Computing

Sijad H.

Sijad H.

Consultant

33 satisfied customers

Multitude of experience in vehicle electronics and wiring diagrams.

TechsterJames

TechsterJames

Car Electronics Technician

17 satisfied customers

Over 15 years of experience with electronics and acoustics, from discreet factory integrations to maximum SPL efficiency.

Louie

Louie

Car Electronics Technician

633 satisfied customers

25+ yrs. experience in the field and 5+ yrs. online, down to component level.

Aric

Aric

Car Electronics Technician

504 satisfied customers

15+ years in the field. Owner of AV Installation, OEM and Repair company

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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