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Instead of using a distribution block, can I just connect the power cable from the 2nd amp to the power connection of the first amp? In effect piggy backing off the first? 1st amp has 4 gauge power connector that is connected to the battery. 2nd amp is for components and uses 8 gauge cable. I was just wondering.

 
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Ehh, Sorry will not work, must have 4guage or bigger from the batt. then distribute it via block or cap fusing both amps as well!

 
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piggy back does not work well if it is even capable.

 
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yep - bad idea.

Good power and grounding are fundamental.

 
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your first amp would hit hard and youd hear the components amp drop out.

dont do it!

 
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Then I need to take this back to the install shop that did this **** poor job. Installer piggy backed the power from the component amp to the sub amp.

 
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Exactly what is happenning. The volume level of the components will spontaneously raise and fall

 
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yeah go backa nd smack him
dont do it yourself. but he may just charge u for a dirstro block and few feet ow 8awg lol.

so u could probably DIY pretty fast

 
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I think I'll do it myself. I no longer trust em. Next question is since most distribution blocks are 4awg in and 8 out. How do I go about connecting 4awg cable from the out of the block to the sub amp? Sub amp takes 4 gauge. component amp takes 8 gauge cable

 
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holy monkeys, a shop did it! dang.

 
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I still need to know how to connect 4 gauge cable to a 8 guage terminal on the amps?

 
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u dont need to

most amps are fine on 4/8.. the reason it says 4 is if u run direct from batt you should run 4

but if u got 4 into the box (which they allready ran)
then u can go 8 into the two. you should be fine

also depending ont he D-block you may be able to wedge 4awg into the out. i can on some that i have.

 
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Here is a three way "T" distribution block, with 4 gauge in, and 4 gauge outs. Made by Stinger, comes in gold or platinum. I currently use two pf them in my car.

STEE4 (gold)
STEE4PT (platinum)

If getting the 4 gauge to work with the amp inputs is a problem, maybe these Stinger items will work. They convert 4 gauge to 8 gauge.

S48ADAPT (gold)
S48ADAPTPT (platinum)

 
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or you can get a 1/0 in, 4 out

or one that has 1/0 in and 2 4 and 2 8 out or something

not to difficult

 
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just wanna say thanks paradoxblue for the ebay instruction link. Mabey itll come in handy one day.

thanks again

 
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Exactly what I was looking for. Thanks man