Can I wire the input from the rear left/right speakers and then wire them from the amp ?

Yes it can come from the rear speakers it has an amp. you need 12V power. just need LFT Right wire. amp wont boost your OEM rear speakers, amp is only for the blaupunkt speaker.

How many Ohms what's the impendance?

This information isn't listed, not even on Blaupunkt site.

Does it good enough for single cab truck with 4 channel stock stereo ?

Fits under the seat. Requires good sized wire for 12 volt power and a ground. comes with a volume trim controller if you want to use it. good base narrow clearance under seats.

Do this amp turn on using the hi level input? And not the remote trigger?

Not sure if it has the auto turn on feature. You can try it without the trigger wire and see if it turns on. If not then you will have to wire the trigger wire to something in the fuse box that is only on when the ignition is on. Otherwise, the battery may be run down.

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Blaupunkt 300W 8-Inch Amplified Subwoofer

Product ID: 37517815

Details

Audio Output Mode
Surround
Brand
BLAUPUNKT
Connectivity Technology
Bluetooth
Input Voltage
55 Volts
Speaker Maximum Output Power
300 Watts

🔊300W Peak Power

⚙️Adjustable Input Sensitivity

🎚️Variable Bass Boost +18dB

Description

🎵 Feel the Bass, Own the Road!

PRECISION AUDIO CONTROL - Adjustable input sensitivity and low-pass filter (40-250Hz) for seamless integration with any car audio system.
POWER THAT PACKS A PUNCH - Delivers up to 300 watts peak power for deep, immersive bass that transforms your drive.
TAILOR YOUR BASS EXPERIENCE - Variable bass boost lets you dial in the perfect low-end thump from 0 to +18dB.
COMPACT SIZE MASSIVE IMPACT - Slim 8-inch subwoofer fits effortlessly in tight spaces without compromising on sound quality.
BUILT TO LAST DESIGNED TO IMPRESS - Robust molded metal casing ensures durability and a sleek, premium look that stands out under your seat.

The Blaupunkt 300W 8-Inch Amplified Subwoofer (GTHS80) is a compact yet powerful car audio upgrade featuring 300 watts peak power, variable bass boost, and adjustable input sensitivity. Engineered with a durable molded metal casing, it delivers rich, deep bass with precision control, making it the perfect fit for millennials seeking premium sound quality and sleek design in their vehicle audio setup.

Specifications

ASIN	B01MA627HA
Additional Features	Bass Boost
Antenna Location	For Computers, For Smartphones or Tablets, For Surround Sound Systems, For Televisions
Audio Driver Size	8 inches
Audio Driver Type	Dynamic Driver
Audio Output Mode	Surround
Best Sellers Rank	#312,093 in Electronics ( See Top 100 in Electronics ) #1,531 in Car Component Subwoofers
Brand	BLAUPUNKT
Built-In Media	User manuall, accessories
Color	BLACK
Compatible Devices	MP3 Player, Smartphone, Tablet
Compatible with Vehicle Type	Car
Connectivity Protocol	RCA
Connectivity Technology	Bluetooth
Control Method	Touch
Controller Type	Corded Electric
Customer Package Type	Standard Packaging
Customer Reviews	4.4 out of 5 stars 445 Reviews
Enclosure Material	Robust Plastic
Frequency Response	250 hertz
Global Trade Identification Number	00815592020967
Input Voltage	55 volts
Is Waterproof	FALSE
Item Dimensions D x W x H	9.2"D x 16.8"W x 3.8"H
Item Weight	10 pounds
Manufacturer	Blaupunkt
Maximum Range	60 meters
Model Name	GTHS80
Model Number	GTHS80
Mounting Type	Car Mount
Number of Audio Channels	1
Number of Items	1
Power Source	Corded Electric
Speaker Maximum Output Power	300 watts
Speaker Size	8 inches
Speaker Type	Subwoofer
Subwoofer Connectivity Technology	Wired
Subwoofer Diameter	8 inches
UPC	815592020967
Unit Count	1 Count
Warranty Description	STANDARD 90 DAYS
Warranty Type	Limited
Water Resistance Level	Not Water Resistant
Wireless Technology	Bluetooth
Woofer Diameter	8 inches

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