Reddit reviews RKURCK 2 Way Power Distribution Block, 0/2/4 AWG Gauge in, 4/8/10 Gauge Out, Car Audio Stereo Amp Distribution Connecting Block for Audio Splitter (2Way)
We found 1 Reddit comments about RKURCK 2 Way Power Distribution Block, 0/2/4 AWG Gauge in, 4/8/10 Gauge Out, Car Audio Stereo Amp Distribution Connecting Block for Audio Splitter (2Way). Here are the top ones, ranked by their Reddit score.
Power/Ground Distribution Block1-0/2/4 Gauge AWG In,2-4/8/10 Gauge AWG OutMade of High Performance CopperDuHigh Temperature Base,High Strength Nonperishable Industrial-grade Plastic CoverSuitable for auto car,RV,ATV,boat or other vehicles, protect your vehicle's audio amplifier system
What you need is a 4 channel amp for your internal speakers if they are not already aftermarket they also need to be upgraded. Trust me on this. It will be loud.
Edit: If your sub woofer is already powered by an amp. Its easy to use the same power source by splitting it with an adapter to power two separate amps. In my old SUV i had a mono amp for my 2x12”subwoofers and a 4 channel amp powering all the internal door speakers in my vehicle my nd tweeters got the same juice from the front door speakers. People used to say they could hear me coming from pretty far out.
Splitter:
https://www.amazon.com/RKURCK-Distribution-Stereo-Connecting-Splitter/dp/B07L952YC1/ref=mp_s_a_1_2?keywords=8%2Bgauge%2Bsplitter%2Bconnector&qid=1569537605&s=gateway&sr=8-2&th=1&psc=1