Sub + Amp install, done by noob - Chevy Bolt EV Forum
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post #1 of 42 (permalink) Old 12-28-2017, 11:24 AM Thread Starter
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Sub + Amp install guide, done by a noob

This is my first time installing audio equipment into a car. Audio shop wanted to charge me 100$ for installation, so i spent a couple days watching youtube vidoes and researching how do do it myself.

These are just some tips on how I did it, I'm not a professional but have some electrical common sense.

For 12V+ A hole can easily be made in the rubber firewall grommet to pass the wire through, i used a round file for this

For 12V- I used the screw hole where the spare tire foam filler attaches to the chassis, scrapped the paint off and installed a nut and bolt with ring terminal holding the wire in place

I used a line output converter to get signal from rear speakers to the amp. Left rear speaker wire colors are (+)green and (-)green black stripe. Right rear Speaker (+) white wire (-)blue wire with black stripe. The quarter panels pop off easily and the insulation on the wiring to the rear door will need to be cut to access the speaker wires. I used T-tap connectors to pick up the speaker signals

For the "Remote on" for the amp, i'm running a wire from the (+) pin of the 12V socket, so that the amp turns on when the car turns on(its just a relay). I modified a 12V USB car charger to achieve this(opened it up, soldered wire to the positive pin)

I screwed the amp directly to the foam filler, seems sturdy enough.

The wires can be neatly tucked away under the panels or carpets or in the seat seams.

The boss LED subs are rated 800 watt RMS 1600 peak, and are relatively cheap compared to other 12 inch subs with the same specs. The blue LEDS are nice, I have them connected to a switch in the front so i can turn them on or off. Even when I leave them on the car battery (12v)doesn't die and the voltage stays above 12....Is the main battery is always keeping the 12v battery charged even when the car is off? Seems like it, but i could be wrong here

The sub box is sitting on the false cargo floor. In the pictures its tilted forward.

My volt meter has the voltage momentarily dropping below 10v when amp is turned up(max), i suspect this may be due to the 8 gauge wire. I plan on upgrading to 4 gauge soon and will post results.

"BOOM BOOM"
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Enzeder and Pike Bishop like this.

Last edited by LaBrother; 12-29-2017 at 09:36 AM.
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post #2 of 42 (permalink) Old 12-28-2017, 12:10 PM
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Looks like you can't use the second row anymore?
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post #3 of 42 (permalink) Old 12-28-2017, 12:21 PM Thread Starter
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Originally Posted by Bazinga View Post
Looks like you can't use the second row anymore?
The false cargo floor is tilted forward, if i push it back down, scoot the box back about an inch, seats can be folded up.
I like to have it tilted forward cause it looks like a photon drive!
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Last edited by LaBrother; 12-29-2017 at 09:13 AM.
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post #4 of 42 (permalink) Old 01-07-2018, 06:47 AM Thread Starter
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Upgraded to 4 gauge wire and 1200 watt amp,(from a 750) voltage stays above 12 now
so basically i figured out the hard way, 8 gauge is really only good for around 600 watts(when running 15+ ft of wire).
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post #5 of 42 (permalink) Old 09-20-2018, 07:46 AM
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Thanks for sharing this. Using this to wire my amp and sub next week!
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post #6 of 42 (permalink) Old 11-30-2018, 02:13 AM Thread Starter
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I have since done a stealth setup, because i needed the trunk space
https://www.chevybolt.org/forum/14-c...lth-setup.html
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post #7 of 42 (permalink) Old 11-30-2018, 03:57 AM
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Meh, I don't get it, doesn't seem worth it to lose all that space.

2017 Black LT
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post #8 of 42 (permalink) Old 11-30-2018, 04:04 AM Thread Starter
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Meh, I don't get it, doesn't seem worth it to lose all that space.
its not, unless u are into "boom boom".
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post #9 of 42 (permalink) Old 11-30-2018, 08:52 PM
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Originally Posted by LaBrother View Post
its not, unless u are into "boom boom".

As long as the "boom boom" stays within the confines of your vehicle, I see no problem.


When the "boom boom" intrudes into the music in *my* vehicle, you're being nothing but a deliberately annoying douche.

Driving electric since 1997!
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post #10 of 42 (permalink) Old 11-30-2018, 10:14 PM Thread Starter
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Originally Posted by GregBrew View Post
As long as the "boom boom" stays within the confines of your vehicle, I see no problem.


When the "boom boom" intrudes into the music in *my* vehicle, you're being nothing but a deliberately annoying douche.
why negativity? i posted here to help others who wanted to install a subwoofer into their bolt... I did quite a bit of research and made sure i did everything properly. The thread was intended to help others, who have never installed audio equipment before(like myself). If you have nothing positive to post or nothing helpful why even post? So the fact that you even posted in this thread makes you look like a deliberately annoying douche.

Last edited by LaBrother; 11-30-2018 at 10:18 PM.
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