does this have to be powered from the battery or can it be powered from head unit?

Needs external power (not from head unit) from battery. I wired mine to fuse block.

will this amp handle 350 watt speakers or do i need a higher amp?

350 watt speakers probably have lower sensitivity which means a mismatch for this low wattage amp. Search and read about speaker sensitivity which is measured in dB.

What wires are required for a 2016 Jeep Grand Cherokee with base six speaker radio?

don't know I ran all new wires for four speaker system.

Is the outside of this amp made of aluminum?

I believe it is thin steel plate.

Xms400d 4 Channel Micro Amplifier Black

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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COP 1147993

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Sold byAmazon ColombiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎵 Elevate your drive with powerhouse sound that fits — don’t just listen, experience!

SPACE SAVVY DESIGN - Sleek and compact, it fits seamlessly into your car without sacrificing space.
EFFORTLESS CONNECTIVITY - Supports both high and low-level inputs with hi-level sensing power-on for easy setup.
PRECISION AUDIO CONTROL - Integrated low-pass and high-pass filters let you fine-tune your sound experience.
SMART PROTECTION SYSTEM - Advanced circuitry safeguards your gear with real-time protection indicators.
POWER THAT PACKS A PUNCH - Delivers a robust 45 watts per channel for immersive, crystal-clear sound.

The Sony XMS400D is a 4-channel Class-D micro amplifier delivering 45 watts per channel at 4 ohms, featuring built-in low-pass and high-pass filters, compact design, and advanced protection circuitry. Perfect for upgrading in-car audio with professional-grade sound clarity and easy installation.

Specifications

ASIN	B01FUFE33O
Best Sellers Rank	#61,978 in Electronics ( See Top 100 in Electronics ) #129 in Car Multichannel Amplifiers
Brand	Sony
Built-In Media	4 Channel amplifier, Harness, screws, mounting tabs, instructions
Customer Reviews	4.2 4.2 out of 5 stars (137)
Item Weight	1.8 pounds
Manufacturer	Sony Mobile Communications, (USA) Inc
Mfr Part Number	XMS400D
Model Number	XMS400D
Unit Count	1 Count
Warranty Description	1 year

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