Will my trunk have wiring for the factory sub?
Thread Starter
Newbie
Joined: Oct 2018
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c63
Will my trunk have wiring for the factory sub?
I have a 2008 C63 which doesn't have the sub in the parcel tray, will the trunk still have the wiring for it though?
I'm wanting to add a aftermarket sub and am looking for a easy way to get the signal from the head unit
I'm wanting to add a aftermarket sub and am looking for a easy way to get the signal from the head unit
Senior Member
Joined: Sep 2014
Posts: 284
Likes: 103
C63
What you need to do is tap into your rear speaker wires in either the rear doors (4dr/Wagon) or quarters (coupe). The hard part is getting back there, but once you have it's a case of using T-taps and running wires back to your amp's speaker level input (or RCA to speaker adaptor if you only have RCA input). The remote signal can be taken from the fuse box in the trunk, and the ground location is also there. Power for once is easy seeing as the battery is under the trunk floor.
Once you're done, it's just a case of fiddling with the gain on the amp to find a balance that works. You'll be able to reduce the bass on your stereo EQ, which will take strain off of your speakers, allowing them to deliver more clarity and stop them from clipping.
This YouTube video kind of explains it, although he has HK so was easy to tap into the parcel shelf sub wires.
I did my buddy's car this way, and it sounds pretty damn good. I am surprised how well the OEM speakers deliver with some weight taken off them, it's at least 3/4 to an HK system, but with more bass.
Once you're done, it's just a case of fiddling with the gain on the amp to find a balance that works. You'll be able to reduce the bass on your stereo EQ, which will take strain off of your speakers, allowing them to deliver more clarity and stop them from clipping.
This YouTube video kind of explains it, although he has HK so was easy to tap into the parcel shelf sub wires.
I did my buddy's car this way, and it sounds pretty damn good. I am surprised how well the OEM speakers deliver with some weight taken off them, it's at least 3/4 to an HK system, but with more bass.
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Joined: Aug 2018
Posts: 57
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From: Dallas
2010 C63, 2007 E63
If you dont have a subwoofer in the hatshelf, you dont have an the external amplifier in the left rear of the trunk. The only amplifier is internal to the headunit, so there is no subwoofer only output unless you purchase some very expensive fiber optic equipment. Your best option is going to be to tap into the door speaker wires with an rca adapter box for low frequencies.
audio 20 is the small screen in the dash vs Comand with the larger one that has an external amplifier.
audio 20 https://i.ytimg.com/vi/McGF3H9t6aM/maxresdefault.jpg
Comand http://1-photos7.motorcar.com/used-2...75-20-1024.jpg
audio 20 is the small screen in the dash vs Comand with the larger one that has an external amplifier.
audio 20 https://i.ytimg.com/vi/McGF3H9t6aM/maxresdefault.jpg
Comand http://1-photos7.motorcar.com/used-2...75-20-1024.jpg
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Modern Mercedes Repair Specialists4515 McEwen Rd
Dallas, Tx 75244
214-218-2555
2 techs 25yrs+ Exclusive Mercedes Repair Experience
CDT and Master certified technician.
We offer full diagnostic, maintenance, tuning, and performance upgrades.
The only shop in DFW that can flash Mercedes direct injection M.E.s (ecu) in house.
Last edited by Modern Mercedes Repair; Oct 24, 2018 at 03:44 PM.
Thread Starter
Newbie
Joined: Oct 2018
Posts: 13
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c63
If you dont have a subwoofer in the hatshelf, you dont have an the external amplifier in the left rear of the trunk. The only amplifier is internal to the headunit, so there is no subwoofer only output unless you purchase some very expensive fiber optic equipment. Your best option is going to be to tap into the door speaker wires with an rca adapter box for low frequencies.
audio 20 is the small screen in the dash vs Comand with the larger one that has an external amplifier.
audio 20 https://i.ytimg.com/vi/McGF3H9t6aM/maxresdefault.jpg
Comand http://1-photos7.motorcar.com/used-2...75-20-1024.jpg
audio 20 is the small screen in the dash vs Comand with the larger one that has an external amplifier.
audio 20 https://i.ytimg.com/vi/McGF3H9t6aM/maxresdefault.jpg
Comand http://1-photos7.motorcar.com/used-2...75-20-1024.jpg
I have command with no amp in the trunk as I checked in the weekend for the amp. Rear door speakers it is
