All New 2017 Mazda 3

**dongotskills** · August 18th, 2018 09:54 PM

Hi. Is there a way to install a subwoofer and amplifier on stock HU on 2017 Mazda 3 1.5? Thanks

**Yatta** · August 18th, 2018 09:59 PM

^If the HU has pre-outs (RCA sockets) then yes.

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**Archerfish** · August 18th, 2018 10:03 PM

Originally Posted by dongotskills

Hi. Is there a way to install a subwoofer and amplifier on stock HU on 2017 Mazda 3 1.5? Thanks

I'm not sure if the head unit of Mazda 3 is identical to CX-5, but *Nelson de Leon installed a subwoofer though I'm not sure about the amplifier.

**Bravoexo** · August 18th, 2018 10:36 PM

Originally Posted by Yatta

^If the HU has pre-outs (RCA sockets) then yes.

Or use Hi-Lo converters if there is none. Just tap into the left and right speaker wires with that method. Most branded amplifiers provide adapters for direct connection to speaker wires as well.

**dongotskills** · August 19th, 2018 01:13 AM

Originally Posted by Bravoexo

Or use Hi-Lo converters if there is none. Just tap into the left and right speaker wires with that method. Most branded amplifiers provide adapters for direct connection to speaker wires as well.

I think Hi-Lo converters is the friendliest route to go in installing a subwoofer and amplifier. Thanks sir.

**mikes** · August 19th, 2018 03:05 PM

Update. After the brake cleaner/fluid was applied on the rotors, that seems to have fixed it. Much smoother now from the first gear from a complete stop.

**Nelson de Leon** · August 19th, 2018 04:58 PM

Originally Posted by Archerfish

I'm not sure if the head unit of Mazda 3 is identical to CX-5, but *Nelson de Leon installed a subwoofer though I'm not sure about the amplifier.

I added a sub with built-in amp na. It's made by Infiniti and it has passive radiators! Hehe! It has both line input and speaker line input (I used this connection because HU has no RCA output). I got my signal input from the OEM sub at the reserve tire.

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**jojopad** · August 19th, 2018 06:56 PM

Originally Posted by dongotskills

I think Hi-Lo converters is the friendliest route to go in installing a subwoofer and amplifier. Thanks sir.

Found this DIY guide that you might find useful. I bought this adjustable line output converter (PAC SNI-35) from amazon years ago when I was planning to install a small sub in the 2007 Mazda3. Might as well use this with my new M3.

https://mazda3revolution.com/forums/...#/topics/65953

**Archerfish** · August 20th, 2018 03:25 PM

There is a guy, whose "problem" I'd like to have, who has a BMW he seldom uses and a Mazda 3 2016 he wants to sell because it literally sits on his garage.

I wonder how many cars the guy has?

**buknoii** · August 21st, 2018 03:02 PM

Originally Posted by mikes

Update. After the brake cleaner/fluid was applied on the rotors, that seems to have fixed it. Much smoother now from the first gear from a complete stop.

is it an ordinary brake cleaner?

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